Interior Tactics: Interior Design through the Lens of Michel de Certeau’s Notion of the Everyday

The relationship between interior design and Michel de Certeau’s notion of the everyday can be understood as a dynamic interplay between the strategic ordering of interior space and the tactical, inventive practices of those who inhabit it. Interior design, as a professional and institutionalized practice, participates in what de Certeau calls “strategies”: it defines proper functions, circulations, and meanings for domestic, commercial, and institutional interiors, and thereby contributes to the larger apparatus that organizes everyday life.¹² In contrast, the ways occupants actually dwell, decorate, rearrange, and improvise within interiors can be read as “tactics” that re-appropriate and re-signify designed environments, much as walkers transform the planned street into a lived space through their routes and detours. This report argues that de Certeau’s theory of everyday practices offers a powerful critical framework for rethinking interior design: it foregrounds practice over representation, bodily routines over visual rhetoric, and user appropriation over authorial control; it also exposes the limitations of architectural and design engagements with the “everyday” that remain primarily discursive or aesthetic rather than grounded in material, lived practice.³² Drawing on architectural theory, especially discussions of architecture and the everyday, as well as broader debates on ordinary life in Lefebvre, Felski, and others, the report develops an account of interiors as key sites where the tensions between strategic design and tactical everyday life are negotiated, resisted, and sometimes reproduced.[^1]¹⁴⁵

1. Everyday Life and the Built Environment: Setting up a Theoretical Field

1.1 The invention of the everyday

The concept of “everyday life” has a long and complex intellectual history, intersecting philosophy, sociology, cultural studies, and architecture. As Rita Felski notes, everyday life is both ubiquitous and strangely elusive: it “escapes” as soon as it becomes the object of critical scrutiny, withdrawing into insignificance even as theorists try to grasp it.⁵ The everyday can seem self-evident, linked to routine, repetition, and habit, yet it also resists fixation because it is defined against what is marked as exceptional, spectacular, or theoretical. This tension is central for any attempt to connect de Certeau’s work to interior design: interiors are conventionally associated with domesticity, routine, and ordinariness, yet the theoretical gaze of design and architecture sets them apart as objects of expertise, distorting their everydayness at the very moment it tries to honor it.

Felski reminds us that de Certeau is only one figure within a broader constellation that includes Henri Lefebvre, Georg Lukács, Martin Heidegger, Ágnes Heller, Alfred Schutz, Erving Goffman, and Jürgen Habermas, among others.⁵ Many of these thinkers approach everyday life as the background horizon of modern existence, a realm of taken-for-granted practices and meanings that both enable and conceal larger structures of power. Yet, as Felski observes, this often remains at a high level of abstraction, one reason why much of this writing was slow to be taken up in feminist and cultural studies, fields that increasingly foreground the concrete and particular.⁵ For interior design, this history is instructive. Critical accounts of everyday life can easily become too abstract to engage the material, sensorial specificity of interiors, or conversely, design can appropriate “the everyday” as an aesthetic label while leaving its deeper social and political dimensions untouched.

At the same time, the everyday is not simply a synonym for banality or passive routine. Lefebvre, one of the most influential theorists of everyday life for architects and designers, insisted on its dual character.¹ Everyday life is, in his view, a site where modernity’s colonizing forces—bureaucracy, consumption, rationalization—produce oppression, boredom, and passivity, yet it is also the locus of ultimate reality and a reservoir of creative potential.¹ There is, he writes, something extraordinary in its very ordinariness; it is a “lower sphere of meaning” that can be elevated and transformed, storing “creative energy in readiness for new creations.”¹ This ambivalence is crucial when we turn to interiors: a kitchen can be a space of repetitive domestic labor and gendered oppression, but it can also be a place of invention, sociability, and micro-resistance enacted through cooking, decoration, or reconfiguration of space.

Michel de Certeau’s intervention, as we will see more fully, is to locate this creative dimension in the “arts of doing” that constitute everyday practice: walking, reading, talking, dwelling, cooking.¹⁵ Everyday life, in his view, is not merely a sphere of ideological reproduction but a dense tissue of tactical maneuvers through which ordinary people appropriate and rework the products and spaces imposed on them. This emphasis on practice, on ways of operating, provides a particularly fertile ground for thinking about interiors, since interior design is both an imposed order and a resource for everyday improvisation.

1.2 Architecture, interiors, and the everyday

Architecture has been an important arena for the reception and adaptation of everyday-life theory, and this shapes how we might position interior design within de Certeau’s conceptual framework. Dell Upton points out that architects, unlike literary critics or sociologists, do not merely observe everyday life from a distance; they intervene directly in it through the spaces they create.² This direct intervention gives architecture a unique responsibility but also complicates its theoretical engagement with the everyday. On the one hand, architects have been drawn to everyday-life theory as a corrective to the abstraction and elitism of modernist discourse; on the other hand, their use of such theory has often remained itself abstract and rhetorical, more concerned with representation and language than with the bodily, material practices through which people live in buildings.³²

Upton notes that around 1970 architectural discourse took a “curious turn” toward rhetorical and semiotic models, famously exemplified by Venturi, Scott Brown, and Izenour’s Learning from Las Vegas.³ This work criticized high modernism’s disdain for popular and commercial landscapes, redirecting attention to the “ordinary” architecture of the Strip. Yet the move to treat the city as a text of signs and symbols also reinforced a linguistic and representational approach, in which everyday life risked becoming another rhetorical figure rather than a field of practice.³ Even later architectural advocates of the everyday, Upton argues, tend to call for a practice grounded in “reality” while nonetheless operating at a predominantly discursive level.³

This critique bears directly on interior design. Interiors are often theorized and represented through images, narratives, and stylistic codes, and contemporary interior discourse can similarly embrace “everyday living” as an aesthetic theme without necessarily engaging the complex practices through which occupants inhabit, resist, and transform designed spaces. The risk is that “everyday life” becomes a marketing trope—spaces are advertised as relaxed, authentic, “everyday” environments—rather than a serious analytic and ethical commitment. Against this, de Certeau’s insistence on the silent, improvisational procedures of everyday practice, and Lefebvre’s emphasis on the bodily and material basis of daily life, push interior design discourse toward a more grounded understanding of lived space.¹²

Moreover, the way theories of everyday life have been integrated into architectural thinking has reinforced certain dichotomies. Upton observes that everyday theory appeared, at first, to endorse longstanding oppositions between high architecture and vernacular building, modern and traditional, elite and popular.⁴ Architects could imagine themselves as island professionals, surrounded by an “everyday mainland” of vernacular and popular landscapes that served as an external reference.⁴ Yet everyday-life theory simultaneously undermined this separation by showing that professional designers themselves belong to the everyday world; they are not outside observers but actors embedded in ordinary life.⁴ For interior design, this recognition is crucial: designers are not external strategists orchestrating a separate realm of everyday users, but participants in the same field of quotidian practices, institutions, and constraints.

1.3 West-centered narratives of the everyday

Any account of the relationship between interior design and de Certeau’s notion of the everyday must also reckon with the geographical and cultural partiality of much everyday-life theory. Nancy Ries notes that de Certeau’s “marginal human” of everyday practice—city-strolling, riding, reading, storytelling, watching television—is often invoked in Western contexts, and that a kind of master narrative of the everyday has crystallized around figures like his bricoleur and the “woman of suburbia.”[^1] Illustrations of everyday life in much theory are set in recognizable Euro-American spaces: bungalows, shopping centers, backyards.[^1]

Ries’s critique aims to unsettle this West-centeredness by bringing everyday theory into dialogue with anthropological work in other cultural and political contexts.[^1] Her concern is directly relevant for interior design, which frequently operates within globalized aesthetic and commercial systems while being experienced in highly localized and culturally specific ways. The suburban bungalow interior or the North American shopping mall atrium cannot stand in for the diversity of interior environments in which everyday life unfolds across the world. If we simply transpose de Certeau’s city walker into the living room or kitchen without attending to differences of class, gender, race, or geopolitical position, we risk universalizing a particular Western middle-class experience.

Felski raises a related issue when she questions whether it is meaningful to talk about everyday life “in general” given the huge variations in human lives across cultural contexts.⁵ The current academic focus on the concrete and particular has led to many detailed studies of specific everyday situations, yet the everyday itself is rarely examined as a concept. In the realm of interiors, this suggests that while we may study, for instance, the everyday practices of migrant households in cramped apartments, or of affluent families in high-end designed homes, we must remain attentive to how our theoretical language—borrowed from de Certeau, Lefebvre, and others—may carry implicit Eurocentric assumptions.[^1]⁵

This does not invalidate de Certeau’s framework for interior design, but it requires that his concepts of strategies, tactics, and practices of space be used reflexively. We must ask: whose everyday is being theorized? Which interiors are being discussed—those of suburban nuclear families, urban precariat, transnational migrants, institutionalized elderly, or others? How do structural inequalities limit or shape the tactical creativity that de Certeau celebrates? These questions will remain in view as we turn to his specific conceptualization of everyday practices and explore their implications for interior design.

2. De Certeau’s Everyday: Strategies, Tactics, and Practices of Space

2.1 Strategies: institutions and the production of “proper” space

In The Practice of Everyday Life, de Certeau introduces a now well-known distinction between “strategies” and “tactics.” Strategies belong to institutions and structures of power—the “producers” of systems, spaces, and representations.¹⁵ A strategy, in his formulation, presupposes a proper place, a locus of power that can be mapped, delimited, and defended. From this vantage point, governments, corporations, and professional disciplines such as architecture and planning can produce environments, rules, and discourses, positioning users as “consumers” of these already structured spaces.

This strategic production of space is exemplified in de Certeau’s discussion of the modern city. Urbanistic and utopian discourses, along with administrative and technical apparatuses, generate a concept of the “city” as a unified whole, often visualized from above in the god’s-eye view of maps, master plans, and aerial photographs.³ From this perspective, streets are geometrically defined, circulation is optimized, zoning is rationalized, and the messy, contingent practices of everyday life are abstracted into flows and functions. The city becomes a text or diagram authored by powerful actors, who define what is proper and regulate how space should be used.

Although de Certeau does not explicitly address interior design as a discipline, it clearly belongs within this strategic pole. Interior design, along with architecture, constitutes an institutional practice empowered to define and articulate interior “places” through plans, codes, furnishings, and representational images. The designer works with a floor plan analogous to the urban planner’s map; rooms are zoned for specific functions, circulation routes are prescribed, visual axes are composed, and materials and colors are selected to communicate desired atmospheres or identities. The interior is thus produced as a “proper” space in de Certeau’s sense, a space in which others are expected to dwell, work, or consume according to predefined scripts.

Upton’s critique of architectural theory underscores how strategies can become more rhetorical than material. He notes that architectural writers who invoke the everyday often remain at the level of discourse, subsuming the physicality of everyday life and the materiality of architecture under linguistic and theoretical tropes.³ Lefebvre, whom de Certeau reads closely, warned that language can both constitute and conceal everyday life, hiding it behind the ornaments of rhetoric.³¹ In the interior-design context, this suggests that a purely stylistic or semiotic approach—treating interiors as texts, brands, or images—risks reproducing strategic abstractions that ignore the embodied daily practices of occupants.

2.2 Tactics: users’ inventive reappropriations

If strategies belong to the powerful, tactics, for de Certeau, belong to those who lack a proper place, who must operate within the spaces defined by strategies.¹⁵ Tactics are opportunistic, contingent, and time-bound; they do not control space but “poach” upon it, exploiting cracks, leftover areas, and moments of weakness in the strategic grid. Everyday practices such as walking, shopping, cooking, and reading are, in de Certeau’s account, tactical arts of making do and making with what is given.

De Certeau’s crucial insight is that consumption is not mere passivity; users transform and re-appropriate the products and environments imposed upon them, weaving them into their own life-worlds.¹ Upton, summarizing de Certeau, describes everyday practice as lacking the organized discourse of modernity but constituting a “multifarious and silent reserve of procedures” with the potential to support a less oppressive society.¹ This reserve resides in the ways people improvise, divert, and reinterpret the rules and resources that structure their daily lives.

The metaphor of walking in the city is perhaps de Certeau’s most famous illustration. The street, geometrically defined by urban planning, is turned into a lived space through the movements of walkers who take shortcuts, pause, detour, and thereby inscribe their own itineraries onto the strategic grid.³ In his oft-cited formulation, “space is a practiced place”: place refers to the abstract, ordered, and mapped configuration established by strategies, whereas space emerges through the practices that animate and traverse that configuration.³⁵ Similarly, a written text is a place constituted by a system of signs, but reading is the space produced by a particular act of engagement, in which readers “poach” meanings, skip passages, and connect texts to their own experiences.

From this vantage point, interiors can be understood as strategic places that become spaces only through the everyday practices of dwelling. The designer may specify a living room layout with a particular flow between seating, media wall, and window, but occupants will sit on the floor, move chairs to face different directions, stand in doorways to talk, or cluster in the kitchen instead. They will appropriate surfaces to display personal objects, improvise storage in corners, and adapt rooms to changing needs: a dining area becomes a workspace, a corridor becomes a play zone, a bedroom wall becomes a projection screen. These micro-transformations are not random; they respond to constraints and opportunities within the designed environment, but they are not fully determined by it. They are tactics that re-interpret and sometimes subvert the designer’s strategies.

De Certeau’s emphasis on this tactical creativity challenges pessimistic accounts of everyday life that see it only as routinized and colonized. Rather than viewing occupants as passive recipients of design, his framework encourages us to see them as active co-producers of space who “make with” the ready-made interiors they inhabit.¹ This is a fundamental shift in how interior design can think about its users: not as end-users who merely “experience” a fixed environment, but as practitioners who continuously reconfigure and reinterpret the interior.

2.3 Practices of space, dwelling, and the interior

De Certeau’s later writings on “practices of space” further deepen this perspective.¹⁵ He argues that spatial practices refer to specific forms of operation, “ways of operating,” which involve another spatiality beyond the abstract coordinates of planners and designers. This other spatiality is anthropological, poetic, and mythic; it encompasses memories, stories, myths, and bodily experiences that weave together place and meaning.¹ Everyday spatial practices are often opaque and blind from the vantage point of strategic rationality: they are not easily mapped or predicted, yet they constitute the lived reality of space.

Dwelling, in this sense, is not simply occupying a designed interior but practicing it in time. De Certeau’s examples of dwelling and cooking, later elaborated in the second volume of The Practice of Everyday Life (Living and Cooking), emphasize the micro-techniques through which households organize their environment, allocate tasks, and improvise in response to shortages, desires, and social relations.¹ The domestic interior is a key site where these practices unfold, and where stories, rituals, and habits attach themselves to rooms, furniture, and objects.

Upton’s call to ground everyday life in bodily practice and the materiality of landscape resonates strongly here.² He criticizes architectural uses of everyday-life theory that remain trapped in dichotomous and hierarchical thinking about the landscape, or that fit their understanding of everyday life into the dominant discourse model of architectural theory.² Instead, he proposes an approach that takes seriously the physical and sensory dimensions of how people dwell in and move through spaces. For interior design, integrating de Certeau’s notion of practices of space with Upton’s emphasis on materiality suggests a research agenda focused on observing and analyzing how people sit, sleep, cook, socialize, store possessions, and customize environments over time, rather than only on the visual form of the interior.

Crucially, this approach also shifts how we think about design authorship. If “space is a practiced place,” then the interior designer can no longer claim full authorship of the interior as a finished space; at most, they author a set of conditions, affordances, and constraints within which everyday practices will generate ever-changing spaces. This understanding opens up the question of how design strategies can acknowledge, support, or even invite tactical practices, rather than attempting to eliminate or preempt them.

3. The Interior as Strategic Apparatus: Interior Design and the Ordering of Everyday Life

3.1 Interior design as an institutional strategy

To explore the relationship between interior design and de Certeau’s everyday, it is helpful to first clarify how interior design functions as a strategic practice in his sense. As a profession, interior design operates within institutional frameworks: building regulations, professional codes of conduct, client briefs, budgets, and market trends. Designers work with representations—plans, elevations, mood boards, digital models—that abstract space into a manipulable, visual field. This aligns closely with de Certeau’s description of strategies as operations that depend on a proper, delimited place from which power can be exercised.¹

Within the interior, the designer’s strategy defines the functional program: which area is designated as bedroom, living room, dining, circulation, or storage; how these areas are arranged in relation to each other; where furniture is placed; how light and color are used to shape perception and behavior. In commercial interiors, strategies may aim to maximize visibility of products, control flows of shoppers, or communicate brand identity; in offices, they may emphasize collaboration, transparency, or efficiency through open plans or particular workstation layouts. These decisions are not neutral. They encode assumptions about how people should live, work, or consume, and they often reflect broader norms about gender roles, family structures, productivity, or social interaction.

Upton’s distinction between the elite world of “Architecture” and the everyday world, where professional designers were long seen as surveying and mining the vernacular rather than inhabiting it, overlaps here.⁴ Interior designers, especially in high-end markets, may be positioned as experts who bring specialized knowledge to bear on the supposedly ordinary lives of clients, shaping their environments according to professional standards and global design trends. This can reinforce a hierarchical relation between designer and user, in which the former occupies a strategic, knowing position while the latter is cast as the recipient of design. Everyday-life theory, including de Certeau’s, has both challenged and inadvertently reinforced such dichotomies.⁴

3.2 The interior as a “proper place” and disciplinary space

The strategic production of interiors is not only functional and aesthetic but also disciplinary. Drawing on Foucault’s analyses of space, de Certeau views strategies as tied to systems of surveillance, normalization, and control, though he emphasizes users’ capacity to resist or subvert these systems through tactics.¹ Interiors, particularly institutional ones—schools, hospitals, offices, prisons—are archetypal disciplinary spaces, organizing bodies in space, regulating movement, and structuring time. Even domestic interiors can be deeply disciplinary, codifying gendered divisions of labor or enforcing notions of privacy and propriety.

Lefebvre’s account of everyday life as a colonized setting of oppression, banality, and passivity is vividly applicable to many interiors.¹ The repetitive rhythms of office cubicles, the standardized layout of hotel rooms, or the confined spaces of low-income housing can feel like material manifestations of larger structures of exploitation and control. Yet Lefebvre’s insistence that everyday life is also a source of potential liberation and creative energy indicates that these same interiors are not static; they can be re-appropriated and transformed from within.¹

Interior design strategies can either reinforce or challenge these disciplinary configurations. A design that rigidly segregates functions—separating cooking, eating, and socializing into distinct zones—may perpetuate traditional gender roles or limit social interaction, whereas an open, flexible layout can enable more fluid arrangements of domestic labor and sociability. However, even apparently progressive strategies can be co-opted: open-plan offices that promise collaboration may also function as instruments of surveillance, eroding privacy and intensifying control over workers’ time and behavior. De Certeau’s framework helps us see that no strategic configuration is free of power relations, and that interior design always participates in shaping the field within which everyday tactics operate.

3.3 Rhetorical interiors and the problem of representation

Upton’s critique that architectural engagement with everyday life has often been more rhetorical than action-based is particularly relevant to interior design’s current fascination with storytelling, branding, and “experience design.”³ Many contemporary interiors, especially in retail, hospitality, and workplace sectors, are designed to embody narratives or values—authenticity, creativity, community, wellness—that are communicated through visual cues, materials, and spatial sequences. While such narratives may draw on everyday motifs (the “home-like” office, the “market-style” food court), they often remain at the level of representation, staging an image of everydayness rather than engaging with actual daily practices.

Lefebvre’s warning that language can conceal everyday life behind rhetorical ornaments applies here.³⁵ When interior design celebrates the everyday primarily through carefully curated vignettes and lifestyle imagery, it risks obscuring the more mundane and less photogenic realities of living and working in those spaces: clutter, mess, bodily needs, fatigue, conflicts, and improvisations. The everyday, in this rhetorical mode, becomes an aestheticized backdrop rather than a serious object of inquiry.

De Certeau’s focus on users’ tactics invites a different orientation. Instead of asking how interiors can represent everyday life, we might ask how they are appropriated in practice. How do people actually move, sit, store, and decorate in a given interior? How do they alter or circumvent the designer’s intentions? What unofficial uses emerge over time? Upton’s call to draw on the materiality of landscape and to ground everyday life in bodily practice suggests that interior design should pay close attention to wear patterns, accumulated objects, and informal modifications as key indicators of how everyday life inhabits and transforms strategic interiors.²

3.4 Designers as everyday subjects

Finally, it is important to emphasize that interior designers themselves are not outside everyday life. Upton notes that theories of everyday life helped push architectural thought beyond rigid dichotomies by demonstrating that professional designers belong to the everyday world as well as to the elite realm of Architecture.⁴ Designers commute, shop, cook, care for children, and dwell in interiors like anyone else; they are shaped by the same routines, media environments, and social norms.

Recognizing designers as everyday subjects complicates the strategic/tactical distinction but does not dissolve it. While designers may tactically appropriate spaces in their own lives, in their professional role they operate strategically, shaping the conditions under which others will live and work. De Certeau’s framework can thus encourage reflexivity among interior designers about how their own everyday experiences inform, and sometimes blind, their understanding of other people’s routines. For example, a designer socialized in a particular middle-class, Western pattern of domesticity may inadvertently assume that certain functions (formal dining, individual bedrooms, dedicated home offices) are universal, neglecting cultural or economic variations. Ries’s critique of the West-centeredness of everyday theory underscores the importance of expanding designers’ imaginaries beyond familiar interior typologies.[^1]

4. Interior Tactics: Everyday Practices of Dwelling, Appropriation, and Resistance

4.1 Dwelling as tactical practice

If interior design is one of the strategies that order everyday life, then dwelling is one of the primary tactics through which this ordering is negotiated and reworked. De Certeau’s understanding of dwelling emphasizes the creative re-use of given forms and resources.¹ Just as walkers compose their own narratives through the city’s strategic grid, dwellers compose lived spaces through the strategic infrastructure of interiors. They do so by arranging furniture, selecting and placing objects, cleaning or letting things accumulate, opening or closing doors and curtains, and using rooms for activities beyond their designated functions.

These everyday tactics of dwelling are often subtle and improvisational. For instance, a resident may place a chair near a window not where plans might suggest it belongs, but where morning light and a view create a pleasurable reading spot. A child may transform a corner of the living room into a play fort by draping fabric over furniture, temporarily reconfiguring the interior into a different spatial order. A worker in an open-plan office may use headphones, plants, or stacks of documents to create a sense of privacy and territoriality within an ostensibly non-territorial layout. These practices do not overthrow the strategic order, but they modulate it, introducing what de Certeau would call “drifts” and “ellipses” in the intended use of space.¹⁵

Lefebvre’s description of everyday life as both colonized and potentially liberating is visible here.¹ On the one hand, routines of cleaning, cooking, and maintenance can reinforce traditional gender roles and economic inequalities, especially in domestic interiors where unpaid labor is often feminized and undervalued. On the other hand, these same practices can harbor creativity and agency: cooking becomes an art of improvisation with available ingredients; cleaning routines can provide a sense of control and care; decorating and organizing can express identity and craft alternative orders within oppressive structures. De Certeau’s tactics do not romanticize these practices but acknowledge their ambivalent mix of constraint and invention.

4.2 Appropriation, personalization, and the poetics of the interior

One of the most visible forms of everyday tactics in interiors is personalization. Occupants add photographs, plants, textiles, and memorabilia; they repaint walls, change lighting, or rearrange furniture to reflect their tastes and histories. These acts of personalization can be read, in de Certeau’s terms, as “poaching” on the designer’s territory, re-inscribing spaces with stories and meanings that may diverge from the original concept.¹⁵

The poetics of these everyday appropriations often remain invisible in design discourse but are central to the experience of interiors. A shelf filled with souvenirs from migration journeys, religious icons, or family heirlooms can anchor a sense of identity and belonging that challenges the anonymous, placeless aesthetic of many contemporary residential developments. In rental housing where tenants cannot make structural changes, tactical appropriations through movable furniture, textiles, and objects become crucial tools for asserting control over an otherwise rigid interior.

Upton’s insistence on the bodily grounding of everyday life suggests that such personalization is not only symbolic but also affects how bodies inhabit space.² A well-worn armchair molded by years of use offers a different kind of comfort and orientation than a newly installed designer sofa; a cluttered kitchen counter may impede certain movements but also keep essential tools within easy reach. These material configurations reflect and shape daily routines, becoming part of what de Certeau calls the “silent reserve of procedures” that characterize everyday practice.¹

Interior designers sometimes attempt to anticipate or script personalization—by leaving “blank” walls for clients to fill, or by incorporating built-in display niches—yet genuine tactics often exceed or subvert such provisions. A display shelf intended for tasteful objets may end up crowded with practical items; a carefully chosen accent wall color may be covered by posters, textiles, or children’s drawings. Recognizing these possibilities as legitimate, even desirable, outcomes rather than failures of design aligns interiors more closely with de Certeau’s notion of everyday inventiveness.

4.3 Resistance in and through interiors

De Certeau emphasizes that everyday tactics can function as forms of resistance, albeit modest, fragmentary, and opportunistic.¹⁵ This is particularly relevant in interiors where occupants face imposed spatial orders linked to broader structures of power: landlords, employers, state institutions, or market forces. In such contexts, interior tactics can challenge or mitigate oppressive conditions.

In overcrowded or inadequate housing, for example, families may creatively redividing space with curtains, furniture, or ad hoc partitions to carve out privacy or gendered boundaries. In dormitories or shelters, residents might personalize beds and small personal zones intensely, asserting individuality in an environment designed for uniformity. Workers might resist open surveillance in offices by occupying less visible corners, informal meeting spots, or stairwells for conversations that escape managerial oversight. These tactical uses of interiors do not overturn structural inequalities, but they can create pockets of autonomy and dignity within them.

Lefebvre’s suggestion that everyday life stores creative energy “in readiness for new creations” connects to social movements that have emerged partly through re-appropriating interior and urban spaces—such as home-based political organizing, feminist consciousness-raising in living rooms, or squatting movements that transform vacant buildings into communal dwellings.¹ While de Certeau’s focus is often on micro-resistances rather than organized movements, his framework can help interior designers and scholars recognize how even small-scale spatial practices in interiors have political dimensions.

Ries’s critique of the Western orientation of everyday theory is particularly important here.[^1] Forms of resistance in interiors vary across cultural and political contexts. In post-socialist, postcolonial, or authoritarian settings, for instance, the home interior may function as a key site of dissent, religious practice, or cultural preservation, with specific tactics for concealing or revealing politically sensitive objects and activities. Everyday tactics in such interiors cannot be fully captured by de Certeau’s Western examples; nevertheless, his concepts can be adapted to analyze the inventive ways people negotiate surveillance, scarcity, or ideological pressure through spatial practices.

4.4 Temporalities of interior tactics

Everyday practices in interiors unfold over time, and this temporal dimension is central to de Certeau’s understanding of tactics, which are seizing of occasions rather than lasting structures.¹ Interior tactics respond to daily, weekly, and seasonal rhythms: furniture is moved to follow the sun or accommodate guests, heating and ventilation practices change with weather, certain rooms or corners become active during specific hours and dormant at others.

Interior design strategies often presuppose relatively stable uses, but in practice, temporal multiplicity is pervasive. A living room doubles as a workspace during the day and a social space in the evening; a dining table serves as a homework station, craft area, and administrative center. The same physical configuration can host different practices over time, leading to layered traces of use: scratches, stains, worn paths. These temporal patterns are crucial for understanding everyday life in interiors but are rarely visible in finished photographs or renderings.

De Certeau’s attention to the everyday as a sequence of acts—walking, reading, cooking—suggests that interior design research should focus on routines and rhythms as much as on static spatial forms.¹⁵ Methods such as time-use diaries, video ethnography, or longitudinal observation can help reveal how interior tactics evolve: how residents gradually rearrange spaces, accumulate or discard objects, and adjust routines in response to changing life circumstances. Upton’s emphasis on grounding everyday life in bodily practice also implies attending to life-course changes—aging, illness, parenthood—that alter how interiors are used and experienced.²

Recognizing the temporal nature of interior tactics can inspire design strategies that are open-ended and adaptable rather than overly fixed. Designing interiors that can accommodate different configurations and uses over time—without requiring major reconstruction—acknowledges that the most significant spatial transformations often arise from everyday tactics rather than from periodic professional interventions.

5. Interior–Urban Relations: Scaling De Certeau’s Everyday

5.1 The interior as micro-urban field

De Certeau’s primary spatial reference is the city, particularly in his famous chapter on “Walking in the City.” Yet his concepts are not confined to urban exteriors; they can be extended to interiors, which can be understood as micro-urban fields with their own networks of paths, thresholds, and nodes. Corridors, doorways, staircases, and lobbies mediate movements similar to streets, intersections, and squares, while rooms and niches function as destinations or enclaves.

Upton’s work on architecture and everyday life suggests that buildings should be seen not as isolated objects but as part of a continuous material landscape shaped by everyday practices.² This perspective dissolves sharp boundaries between interior and exterior, allowing us to think of dwellers as moving tactically across scales—from room to apartment, building to street, neighborhood to city. For example, a resident’s daily route may include leaving a bedroom, crossing a living room, descending a staircase, exiting onto a sidewalk, walking to public transport, and entering another building. Each segment involves strategic spatial orders and tactical practices.

From this trans-scalar viewpoint, interior designers participate in the same field of everyday life as urban designers and architects, shaping segments of users’ daily trajectories. De Certeau’s notion that “space is a practiced place” thus applies continuously along the chain of places that compose a person’s day; it does not stop at the building envelope.³ Understanding this continuity can help interior design avoid an insular focus on enclosed spaces and instead consider how interiors contribute to larger patterns of urban everyday life.

5.2 Thresholds, interfaces, and in-between spaces

The relationship between interiors and de Certeau’s everyday becomes particularly vivid at thresholds: entrances, lobbies, porches, balconies, and semi-public corridors. These spaces are often sites of tactical negotiation between public and private, formal and informal, strategic and improvised uses. While the reference materials highlighted here focus more on broad theoretical issues than on specific thresholds, Upton’s emphasis on the materiality of landscapes and everyday bodily practice implies that such liminal spaces are key arenas of everyday life.²

In many cultures, thresholds are where shoes are removed, greetings exchanged, deliveries received, and impromptu conversations held. Residents may appropriate hallways or stair landings for storing shoes, bicycles, or plants, even when regulations prohibit such uses. Balconies and porches function as extensions of interior life into the urban environment, hosting drying laundry, small gardens, or social gatherings. These tactical uses often conflict with formal design intentions or building codes but are central to residents’ everyday comfort and sociability.

De Certeau’s understanding of walking as an inventive practice that turns the geometrically defined street into a lived space can be analogized to how occupants move through and appropriate interior thresholds.³¹ Designers might intend a lobby to be a clean circulation space, but residents may use it as a place to linger, meet, or display community notices. Recognizing such practices as legitimate tactics rather than as nuisances calls for interior design strategies that accommodate and even encourage diverse uses of in-between spaces.

5.3 Domestic interiors and suburban everyday life

Ries notes that the everyday in much theory, including de Certeau’s, is illustrated through Western, particularly suburban, environments: bungalows, shopping centers, backyards, and the “woman of suburbia” figure.[^1] Domestic interiors in these contexts are usually framed as sites of comfort, consumption, and family life, yet also as arenas of boredom, isolation, and gendered labor.

De Certeau’s tactics can illuminate suburban interiors as spaces where occupants both conform to and quietly deviate from normative models of domesticity. While the strategic layout of a suburban home may presume a nuclear family with distinct roles, real households may use rooms in unexpected ways: a formal dining room becomes a home office, a garage becomes a workshop or gym, a “spare” bedroom accommodates multigenerational living. These tactical appropriations can challenge the normative assumptions encoded in the design.

However, Ries urges us to move beyond this suburban-centric image of the everyday.[^1] For interior design, this means attending to diverse forms of domesticity: informal settlements, shared housing, migrant workers’ dormitories, refugee shelters, and more. Here, de Certeau’s emphasis on making do with limited resources and on the inventiveness of everyday tactics is highly relevant, but the specific practices and constraints differ significantly from suburban settings. Understanding how people in such contexts tactically create interiors under conditions of scarcity, insecurity, or legal precarity can expand both everyday-life theory and interior design practice beyond Western middle-class norms.

5.4 Interiority, privacy, and exposure

Interiors are often associated with privacy, protection, and interiority in a psychological sense. Yet de Certeau’s everyday is shaped by the interplay of exposure and withdrawal, visibility and invisibility. Tactics frequently involve operating in the interstices of surveillance, using spatial configurations to hide or reveal actions selectively.

In homes, occupants may use interior layouts to conceal certain activities from neighbors, guests, or authorities, while making others visible as markers of respectability. In authoritarian or conflict settings, the ability to conceal politically sensitive objects or meetings within interiors can be a matter of survival. In more ordinary contexts, people may tactically modulate exposure through curtains, room dividers, or strategic clutter that obstructs sightlines.

Interior design strategies can either support or undermine such tactical control over visibility. Open-plan layouts, glass partitions, or minimal storage may look aesthetically appealing but can limit occupants’ ability to construct zones of privacy and opacity. De Certeau’s framework thus suggests that good interior design should not only provide visual coherence and openness but also opportunities for tactical retreat and concealment, recognizing that everyday life involves managing relations of seeing and being seen.

6. Methodological and Pedagogical Implications for Interior Design

6.1 From representation to observation: studying everyday interior practices

De Certeau’s focus on everyday practices and Upton’s insistence on grounding theory in bodily, material realities point toward methodological shifts in how interior design is researched and taught.¹² Rather than starting from images, styles, or typologies, an everyday-life approach would begin by observing how people actually live in interiors.

This could involve ethnographic methods: spending time in homes, workplaces, and public interiors; conducting interviews about daily routines; mapping movements and uses of space; documenting informal modifications and accumulations of objects. Lefebvre’s interest in rhythms suggests paying attention to temporal patterns: when and how different spaces are used, how activities overlap, and how routines change across days, weeks, or seasons.¹ Such methods can reveal discrepancies between designed intentions and lived reality, highlighting where tactics flourish, where strategies fail, and where everyday practices encounter friction or support.

Felski’s observation that everyday life is rarely taken under the microscope despite intense interest in particular cases indicates a gap that interior design scholarship could help fill.⁵ By systematically analyzing ordinary interiors and their daily use, interior researchers can contribute to a deeper theoretical understanding of the everyday that is both philosophically informed and empirically grounded. This might involve cross-cultural comparisons that respond to Ries’s call to breach the West-centeredness of everyday theory, examining how different cultural contexts shape interior tactics and how global design trends interact with local practices.[^1]⁵

6.2 Teaching interiors as practiced spaces

In education, integrating de Certeau’s everyday into interior design curricula would entail teaching students to see interiors not as static compositions but as practiced spaces. Exercises might focus on documenting existing interiors and mapping how they are used over time, rather than immediately proposing redesigns. Students could be asked to trace their own daily movements and routines, reflecting on how interior configurations support or hinder their activities.

Upton’s observation that builders intervene directly in everyday life implies an ethical dimension to design pedagogy: students should be made aware that their design decisions will shape others’ daily experiences in ways that are not always predictable or controllable.² Introducing de Certeau’s concepts of strategies and tactics can help future designers anticipate that occupants will appropriate and modify spaces in ways that may diverge from the original concept, and that this is not necessarily problematic but a sign of healthy everyday life.

This perspective encourages designing for flexibility and openness rather than total control. It can also foster humility, countering the image of the designer as omniscient author. Students can be encouraged to think of their role as providing frameworks and affordances for everyday practices, leaving room for tactical improvisation. Such an approach aligns with Lefebvre’s sense that everyday life is a source of creativity waiting to be activated, not simply a terrain to be disciplined.¹

6.3 Co-design and participatory tactics

De Certeau’s notion of the consumer as an active, creative agent suggests that design processes should engage users not only as informants but as co-designers.¹ Participatory design methods, in which residents or workers collaboratively shape the interior, can be understood as bringing tactics into dialogue with strategies. Rather than imposing a strategic design from above, the designer facilitates a process in which everyday practices inform spatial decisions.

In domestic interiors, co-design might involve workshops where household members map their routines and spatial needs, test different furniture layouts, and discuss conflicts or aspirations. In workplaces, employees might co-develop configurations of shared and private spaces, identifying areas for focused work, informal interaction, and rest. Such processes can surface tacit knowledge about everyday tactics—places where people like to linger, routes they prefer to avoid, improvised storage solutions—that would be invisible in a purely top-down design process.

Ries’s and Felski’s concerns about the diversity of everyday lives and the dangers of abstraction support participatory approaches that attend to specific contexts rather than imposing generalized models of “good” interior design.[^1]⁵ However, participatory methods are not automatically emancipatory; power dynamics within groups and between designers and users must be carefully navigated. De Certeau’s framework can serve as a reminder that even in participatory processes, some strategies and tactics will prevail over others, and everyday creativity may still be constrained by structural factors such as housing policy, labor relations, or economic inequality.

6.4 Rethinking evaluation: success metrics for everyday interiors

Traditional evaluation of interior design often focuses on aesthetic coherence, functional efficiency, compliance with codes, and client satisfaction at the moment of handover. An everyday-life perspective suggests additional criteria: how do interiors perform over time as sites of tactical practice? Do occupants feel able to adapt and personalize spaces? Do unanticipated uses emerge that enrich everyday life, or do spaces remain rigid and underutilized?

Upton’s critique of rhetorical models in architecture implies that evaluation should move beyond representations—photographs, awards, magazine coverage—to the lived experience of spaces.³² Post-occupancy evaluations that examine how interiors are actually used, how furniture and objects are rearranged, and how residents describe their daily interactions with space can provide valuable feedback. Such evaluations may reveal, for example, that a minimalistic, visually striking interior is difficult to live in because it offers insufficient storage and no tolerance for clutter—leading residents either to constant stress or to the surreptitious accumulation of objects that undermines the intended aesthetic.

De Certeau’s notion of tactics suggests that an interior’s success might be measured by the richness and diversity of everyday practices it supports, including those not foreseen by the designer.¹ An interior that becomes a canvas for residents’ everyday creativity—hosting a variety of activities, accommodating changing needs, accumulating meaningful traces of use—could be seen as more successful, from an everyday-life perspective, than one that remains visually pristine but little used or rigidly controlled. Such a shift in evaluation criteria could, over time, reshape design priorities toward more generous, adaptable, and user-centered interiors.

7. Critical Reflections: Limits, Risks, and Extensions of De Certeau for Interior Design

7.1 Romanticizing tactics and neglecting structures

While de Certeau’s emphasis on everyday tactics is inspiring for interior design, there is a risk of romanticizing users’ creativity and downplaying structural constraints. The celebration of tactical “making do” can obscure the injustices that force people to make do with inadequate housing, unsafe working conditions, or exploitative tenancy arrangements.

Lefebvre’s insistence that everyday life is colonized by oppression even as it holds creative potential reminds us that tactics operate within a field constrained by economic, political, and social structures.¹ In many interiors—overcrowded slums, refugee camps, company dormitories—occupants’ tactical appropriations may alleviate discomfort but cannot overcome fundamental problems of space, safety, or rights. Interior designers who focus too enthusiastically on occupants’ inventiveness might inadvertently legitimize these conditions, implying that clever tactics can compensate for systemic injustice.

Ries’s critique of the West-centeredness of everyday theory adds another dimension to this concern.[^1] De Certeau’s examples—urban flânerie, television viewing, suburban domesticity—emerge from contexts of relative stability and consumer abundance. In situations of extreme poverty, displacement, or surveillance, everyday tactics may take on more urgent and less playful forms; their costs and risks may be higher. Interior design research must be careful not to project a Western middle-class image of tactical freedom onto contexts where choices are severely constrained.

7.2 The gendered everyday and domestic interiors

Feminist critiques have long pointed out that much theorizing of everyday life has been androcentric, centering male experiences while neglecting women’s domestic labor. Felski notes that everyday-life theory’s often abstract philosophical character may have contributed to its limited uptake in feminist and cultural studies, which tend to focus on concrete, gendered experiences.⁵

Domestic interiors are a primary site where gendered divisions of labor and power play out. Housework, caregiving, emotional labor, and domestic management are often performed by women and marginalized genders, shaping their everyday relationship to interiors. While de Certeau acknowledges the “woman of suburbia” as a key figure in Western everyday life, his emphasis on tactics risks glossing over the unequal burdens borne by those responsible for sustaining household routines.[^1]⁵

Interior design informed by de Certeau must incorporate feminist analyses of domestic labor, recognizing that tactics such as multitasking in kitchens, improvising childcare spaces, or reorganizing cleaning routines are not simply creative choices but often responses to gendered expectations and structural inequalities. Design strategies that claim to support everyday life need to scrutinize whose everyday they are enhancing and at what cost. For example, an open-plan kitchen-living area may facilitate family togetherness but also intensify the constant visibility and availability of the person responsible for cooking and cleaning.

7.3 Everyday life and cultural specificity

Ries’s call to breach the West-centeredness of everyday theory highlights the need to situate interior design within diverse cultural practices of dwelling.[^1] Concepts like privacy, comfort, cleanliness, and proper use of space vary widely across societies. An interior strategy that supports tactical creativity in one context may constrain it in another.

For instance, in some cultures, sleeping arrangements are flexible, with mats rolled out and stored daily, while in others, fixed beds and separate bedrooms are normatively expected. Interior designs that rigidly encode one pattern may limit households who practice the other. Similarly, storage practices, attitudes toward clutter, and the display of religious or familial symbols differ across cultures. De Certeau’s framework must be adapted to these variations, attending to how tactics are shaped by local norms and values.

Felski’s question—whether it makes sense to talk about everyday life “in general” given enormous variations in human lives—remains pressing for interior design.⁵ Rather than seeking a universal model of tactical dwelling, designers and researchers might use de Certeau’s concepts as heuristic tools, refined through empirical engagement with specific contexts. This approach aligns with anthropological methods that Ries advocates, bringing everyday theory into dialogue with ethnographic observations rather than imposing it as a master narrative.[^1]

7.4 Beyond interiors: infrastructures, media, and digital everyday

Finally, the everyday practices that shape interiors are increasingly entangled with technological and infrastructural systems: digital media, smart home devices, online work and education, networked appliances. De Certeau’s original work predates many of these developments, though his analysis of reading, media consumption, and the appropriation of mass culture anticipates some aspects of digital life.¹⁵

In contemporary interiors, everyday tactics include configuring Wi-Fi routers, positioning screens to balance work and family life, managing device charging stations, and negotiating the intrusion of work emails or social media into domestic time. Smart home systems add another layer of strategic control, automating lighting, temperature, and surveillance, but users often develop tactical routines to override or adapt these systems.

Interior design that engages with de Certeau’s everyday must therefore consider infrastructures and media as integral parts of the interior. Tactics of dwelling now involve not only physical movement and object arrangement but also digital navigation and temporal management of notifications, platforms, and networks. Lefebvre’s and Felski’s broader reflections on modern everyday life as saturated with media and abstract systems remain relevant here, suggesting that interior design should engage critically with how digital technologies reconfigure everyday spatial practices.¹⁵

8. Toward a Certeauian Interior Design: Concepts in Practice

8.1 Designing for tactical openness

A core implication of de Certeau’s theory for interior design is the value of designing for tactical openness. This does not mean abandoning all strategic planning—interiors must still meet safety, accessibility, and basic functional requirements—but it does mean resisting overly prescriptive configurations that leave little room for improvisation.

In residential interiors, this might translate into providing flexible, multi-purpose spaces rather than highly specialized rooms. Instead of tightly custom-built storage that dictates where every object must go, designers might offer more generic, adaptable storage that occupants can organize according to their own categories. Furniture arrangements could be easily reconfigurable, with movable elements and multiple possible focal points, allowing residents to create different spatial narratives: a social gathering layout, a solitary reading corner, a children’s play zone.

De Certeau’s notion that readers are “travellers” across texts they did not write, moving nomadically across fields of meaning, can be transposed onto interior dwellers as travellers across spaces they did not design.⁵ Interiors that support multiple “paths” and uses acknowledge this traveller role, whereas overly choreographed interiors treat occupants as actors in a fixed script. Upton’s critique of architectural hierarchies between elite and vernacular suggests that designing for tactical openness involves respecting occupants’ everyday knowledge and practices as legitimate forms of spatial intelligence.²⁴

8.2 Recognizing and working with existing tactics

In many cases, interior design interventions occur in already inhabited spaces where tactics are well-established. A Certeauian approach would begin by carefully observing and understanding these existing practices before proposing changes. Rather than seeing informal modifications and clutter as problems to be eliminated, designers can treat them as clues to occupants’ real needs and preferences.

For example, if a family has turned a corridor into a makeshift storage and play space, this might indicate that the home lacks adequate storage and child-friendly areas. A sensitive redesign could formalize and improve this tactical use rather than trying to restore the corridor to a pure circulation function. If office workers have colonized a stair landing as a social space because the break room is uninviting, designers might enhance this landing or create new informal gathering spots that align with workers’ preferences.

Such approaches align with Upton’s call to transcend architectural dichotomies and hierarchies by recognizing that professional designers are not outside the everyday world but part of it.⁴ Working with existing tactics acknowledges occupants as co-authors of space and treats their interventions as valuable design intelligence rather than as mistakes.

8.3 Tactical reading of codes, regulations, and standards

Interior design is constrained not only by spatial conditions and client desires but also by building codes, health and safety regulations, accessibility standards, and institutional policies. These frameworks represent strategic orders that define what is permissible in interiors. However, as de Certeau shows, even such rigid frameworks can be tactically read and navigated.¹

Designers can develop tactical strategies—ironically, tactics at the strategic level—to interpret regulations in ways that support everyday life rather than hinder it. For example, code-required circulation widths can be designed as generous, usable spaces rather than dead corridors; accessible features can be integrated in ways that benefit all users and support diverse tactics rather than being treated as minimal compliance. In institutional interiors, designers may lobby for policy changes that allow more flexible use of space, drawing on evidence of how staff and users currently appropriate environments.

Lefebvre’s and Felski’s broader critiques of modern bureaucratic systems suggest that regulations are part of the colonization of everyday life, but they also hint at possibilities for transforming these systems from within.¹⁵ Interior designers who understand de Certeau’s distinction between strategies and tactics might be better equipped to identify when strict adherence to strategic frameworks undermines everyday well-being and to advocate for changes or tactical interpretations that re-center human practices.

8.4 Storytelling as spatial practice

De Certeau emphasizes that stories are themselves spatial practices, offering “travel narratives” that organize space and guide movement.⁵ In interiors, occupants’ stories about their homes or workplaces influence how they value and use different spaces. A room might be cherished not for its design features but because it is associated with particular memories; a corner may be avoided because it evokes discomfort or conflict.

Interior designers often use storytelling in the design process, creating narratives about how spaces will be used. A Certeauian perspective encourages incorporating occupants’ own stories into this process and recognizing that these narratives will evolve as tactics emerge. Upton’s observation that everyday life should be grounded in bodily practice suggests that these stories should be anchored in concrete actions and experiences rather than abstract lifestyle ideals.²

For instance, asking residents to recount a typical day in their home can reveal spatial frictions and pleasures invisible in floor plans. Asking workers to describe moments when they feel productive, stressed, or relaxed in their environment can guide strategic decisions about layout and amenities. These narrative practices bring everyday tactics into the design dialogue, potentially leading to interiors that better align with lived experience.

9. Conclusion: Interior Design after De Certeau

The relationship between interior design and Michel de Certeau’s notion of the everyday can be summarized as a complex dance between strategies and tactics, between professional design intentions and the inventive practices of those who dwell in designed spaces. De Certeau conceptualizes everyday life not as a dull backdrop but as an arena of creative, if constrained, operations—walking, reading, dwelling, cooking—through which people re-appropriate the structures imposed on them.¹⁵ Interiors are among the most intimate and consequential of these structures, shaping the rhythms, comforts, and constraints of daily existence.

Interior design, as an institutionalized practice, participates in what de Certeau calls strategies: it defines proper places, programs functions, and uses representational tools to produce ordered interiors.¹ This strategic role carries responsibility, as Upton emphasizes, because builders and designers intervene directly in everyday life.² Yet strategies are never fully realized as lived space; they are always mediated by tactics. Occupants tactically appropriate, personalize, and reconfigure interiors, turning planned places into lived spaces through routines, improvisations, and resistances.

Theoretical engagements with everyday life have pushed architecture and interior design in important new directions, foregrounding the importance of ordinary environments and daily practices.²⁴ However, as Upton and Felski warn, these engagements risk remaining rhetorical or abstract if they do not attend to the material, bodily, and culturally specific realities of everyday life.³²⁵ De Certeau’s emphasis on practices of space offers a way to anchor theory in observation, while Lefebvre’s ambivalent account of the everyday as both oppressed and potentially liberating reminds us to consider structural inequalities and political contexts.¹

For interior design, adopting a Certeauian perspective implies several shifts. First, it requires seeing interiors not as finished objects but as ongoing processes, continuously produced and reproduced through everyday practices. Second, it encourages designing for tactical openness, allowing occupants to improvise, personalize, and adapt spaces rather than enforcing rigid scripts. Third, it calls for methodological changes: incorporating ethnographic observation, participatory co-design, and post-occupancy evaluation to understand how interiors are actually lived. Fourth, it demands critical sensitivity to issues of gender, class, culture, and power, acknowledging that tactics are shaped and constrained by structural conditions and that not all everyday creativity is benign or freely chosen.[^1]¹⁵

Ries’s critique of the West-centeredness of everyday theory challenges interior designers to expand their focus beyond familiar suburban and Western contexts, analyzing how de Certeau’s concepts apply—and must be adapted—to diverse forms of dwelling worldwide.[^1] Felski’s reminder that everyday life has a long intellectual history, extending beyond de Certeau to Lefebvre, Lukács, Heidegger, Heller, Schutz, Goffman, Habermas, and others, suggests that interior design can draw on a rich interdisciplinary tradition to deepen its understanding of the ordinary.⁵

Ultimately, the value of de Certeau’s notion of the everyday for interior design lies in its revaluation of ordinary users as active agents and creative practitioners. Rather than seeing occupants as passive “end-users” of expertly designed interiors, a Certeauian interior design recognizes them as co-authors of space, whose tactics complete, contest, and sometimes transform design strategies. This recognition is not only analytically illuminating; it is ethically and politically significant. It invites designers to share authorship, to listen to and learn from everyday practices, and to create interiors that are generous, adaptable, and open to the unpredictable richness of daily life. [^1] chisineu.files.wordpress.com