Comparison becomes intellectually productive when difference is neither erased by a universal metric nor protected as an incomparable singularity. The urban field is especially resistant to both reductions because every city, neighbourhood, building and everyday practice is simultaneously situated and relational: particular in its material and cultural composition, yet connected to processes that recur elsewhere in altered form. Jan Nijman formulates comparative urbanism precisely in this intermediate register, between what can be said of all cities and what can be said only of one city at one moment. His insistence that similarity and difference must be studied together establishes comparison as a problem of epistemic calibration rather than case multiplication. The later theoretical imperative he identifies follows from this: comparison is unavoidable wherever urban research seeks knowledge that can travel, but its legitimacy depends on preventing one place from becoming the tacit norm against which others are measured. Jennifer Robinson radicalises this proposition by detaching theory production from a restricted geography of authorised cases. Comparative urbanism becomes a method for generating revisable concepts from anywhere, using located insight without pretending that location exhausts relevance. The important operation is not the selection of equivalent cases but the construction of relations capable of revealing unexpected analogies, divergences and causal configurations. This makes comparison generative rather than classificatory. A similar logic appears at smaller spatial scales in the work of Quentin Stevens, Dale Leorke, Kim Dovey, Fauster Awepuga and Merrick Morley on temporary urbanism. Their comparative study of pop-up parks in Melbourne, Sydney and Perth follows four interventions through different spatial, political and developmental contexts, showing that temporariness can operate as a strategic test rather than merely as a stop-gap condition. The temporary project becomes an epistemic device because it inserts a reversible proposition into the city and allows consequences to be observed before permanence is authorised. Mapping, interviews, planning documents and long-term trajectories reveal how comparison can join spatial form, institutional process, public response and temporal transformation without reducing them to a single indicator. Here the comparative object is not simply the park but the pathway by which temporary occupation acquires durability. Renee Zahnow shifts the same problem into neighbourhood attachment. Her distinction between place type and place function demonstrates that spatial categories do not carry stable social effects independently of use. Public places, local consumption places and socialisation places acquire different degrees of attachment depending on frequency, shared purpose, social experience and the meanings users attribute to them. A café, gym, place of worship or park therefore cannot be understood by typological identity alone; comparison must preserve the relational work through which function becomes lived significance. Justin Eng and Gavin McCormack extend this into the relation between place attachment, walkability and walking. Their analysis of Calgary neighbourhoods shows that built form and affective or functional attachment do not align through a simple linear rule. Street patterns, place identity, place dependence and different forms of walking interact unevenly, which means that an objectively more walkable environment does not automatically generate the same behavioural relation for all forms of attachment. The significance of comparison lies in detecting conditionality: the effect of one urban attribute depends upon the configuration in which it operates. Samar Thapa and Giovanni Pernigotto make this explicit at the climatic scale. Their comparison between naturally ventilated buildings in high-latitude Europe and the mountainous Himalayan context of Darjeeling demonstrates that similar temperate classifications do not produce identical comfort ranges. Clothing, indoor-outdoor thermal coupling, cultural adaptation and building practices modify what counts as acceptable comfort. The comparative act therefore destabilises the universal indoor standard and recovers comfort as an adaptive relation among climate, body, building and convention. Harold Wilhite and Elizabeth Shove had already exposed the epistemic stakes of this move in energy research. Their critique of technical and economic models of household energy consumption shows that practices such as lighting, cooling and heating cannot be derived from abstract efficiency potentials or individual preferences. Japanese and Norwegian lighting conventions differ because technologies, aesthetics, industries, expectations and routines have developed through distinct socio-technical histories. Air conditioning likewise becomes necessary only after buildings, standards, industries and cultural expectations have combined to manufacture a particular normality. Ana Horta, Wilhite, Luísa Schmidt and Françoise Bartiaux extend this argument by treating energy consumption as a bridge between nature and culture, locating demand within political decisions, conventions, infrastructures and social practice. Comparison thus becomes capable of detecting how apparently technical phenomena are culturally organised without collapsing culture into an explanatory residual. Across these scales, situated comparison is not a compromise between universalism and particularism but a method for producing stronger abstractions. It asks which differences matter, which similarities are consequential, which variables are artefacts of classification, and which relations remain stable enough to travel. The city becomes comparable when its specificity is retained long enough for relations to become visible. An operational field built through situated comparison must therefore organise knowledge so that mobility does not require decontextualisation. The problem is not merely how to store heterogeneous material but how to preserve the conditions that make heterogeneous material comparable: provenance, scale, temporal position, spatial relation, mode of observation, technical mediation and institutional context. This alters the architecture of a corpus. A conventional archive often stabilises objects by assigning them categories, while a comparative archive must also retain the possibility that categories themselves will be revised when new cases enter the field. Nijman’s intermediate register becomes infrastructural: metadata must be precise enough to distinguish cases without freezing them into isolated singularities, and general enough to permit relations across different places and moments. Robinson’s call for theory that can begin anywhere intensifies this requirement because a distributed field cannot maintain one canonical site as the epistemic centre from which all others derive meaning. Search, citation and indexing must allow peripheral, recent, minor or geographically distant materials to become concept-producing rather than merely illustrative. This is particularly relevant to an archive that moves across architecture, urbanism, energy, environmental psychology, artistic research and public infrastructure. Situated comparison provides a grammar for that movement. A temporary intervention can be compared with a permanent one through duration and institutional uptake rather than formal resemblance; a neighbourhood can be compared through patterns of attachment rather than typology alone; climates can be compared through adaptive comfort rather than identical temperature thresholds; energy cultures can be compared through conventions of service rather than kilowatt-hours alone. The comparative unit is therefore constructed in relation to the question. Stevens and colleagues show how reversible urban experiments become longitudinal evidence when their trajectories are followed beyond the event. This suggests an archival principle of temporal recursion: a trace should remain open to later states that alter its interpretation. A photograph of a pop-up park, for example, changes epistemic status if the temporary intervention later becomes permanent; the archive must be capable of connecting those states rather than treating them as separate objects. Zahnow’s work adds a functional principle. Spatial form should not be indexed only by physical type because use, shared purpose and recurrent social experience can reorganise the meaning of apparently similar settings. An archive of places therefore gains explanatory power when social function and lived attachment remain traceable alongside morphology. Eng and McCormack add a behavioural qualification: spatial configuration and affective connection interact, so evidence should preserve the distinction between measurable urban form and experiential relation instead of assuming that one transparently predicts the other. Thapa and Pernigotto make the same point climatically. A temperature value becomes meaningful only in relation to building type, latitude, altitude, ventilation, clothing and adaptive expectation. Comparative knowledge thus depends on contextual density, not on the elimination of context. Wilhite and Shove show what is lost when modelling abstracts practice from the socio-technical systems that fabricate demand. Their move from individual consumer to household, institution, manufacturer, media, infrastructure and policy is instructive for any transdisciplinary corpus: the meaningful unit is often a web of interdependence rather than a single actor or object. Horta and colleagues further demonstrate that the social organisation of energy cannot be treated as an optional cultural layer added after technical description; culture, technology and extraction are co-constitutive. For Socioplastics, this implies an archive whose comparative intelligence lies in maintaining multiple registers at once. A node can carry conceptual, spatial, temporal, bibliographic, visual and infrastructural relations without one of them becoming the sovereign key. Comparison then acts as a pressure test on categories. Repeated encounters with divergent cases reveal where a term is too broad, a scale too crude, a distinction too local or a presumed universal merely conventional. The field becomes self-revising because new material does not simply increase volume; it modifies the relations through which earlier material can be interpreted. This also changes what public legibility means. A searchable corpus is not legible merely because its items can be found. It becomes legible when users can understand why two items have been brought into relation, what differences have been preserved, what transformations made comparison possible, and where analogy ceases to hold. Such legibility resists both the encyclopaedic fantasy that everything can be reduced to one grid and the opposite fantasy that every case is incommensurable. It produces a disciplined openness in which abstractions remain revisable and situated evidence remains mobile. The resulting urban epistemology is neither localist nor universalist: it is relational, conditional and recursive, capable of moving from household energy practices to thermal environments, from neighbourhood attachment to metropolitan theory, and from temporary interventions to durable institutions without presuming that scale determines epistemic value. Socioplastics becomes stronger when comparison is treated as an infrastructural operation for making differences think together rather than an after-the-fact technique for arranging cases. Within Socioplastics, this condition condenses as ContextReadymade.
Anto Lloveras is an architect and urban researcher working across spatial practice, urban epistemology, archives, infrastructure and comparative forms through LAPIEZA LAB and Socioplastics.
Bibliography
Eng, J. and McCormack, G.R. (2025) ‘Place attachment and walkability and their associations with walking in urban neighbourhoods’, Scientific Reports, 15, 35474. https://doi.org/10.1038/s41598-025-19319-6.
Horta, A., Wilhite, H., Schmidt, L. and Bartiaux, F. (2014) ‘Socio-Technical and Cultural Approaches to Energy Consumption: An Introduction’, Nature and Culture, 9(2), pp. 115–121. https://doi.org/10.3167/nc.2014.090201.
Nijman, J. (2007) ‘Introduction—Comparative Urbanism’, Urban Geography, 28(1), pp. 1–6.
Nijman, J. (2015) ‘The Theoretical Imperative of Comparative Urbanism: A Commentary on “Cities beyond Compare?” by Jamie Peck’, Regional Studies, 49(1), pp. 183–186. https://doi.org/10.1080/00343404.2014.986908.
Robinson, J. (2016) ‘Comparative Urbanism: New Geographies and Cultures of Theorizing the Urban’, International Journal of Urban and Regional Research, 40(1), pp. 187–199. https://doi.org/10.1111/1468-2427.12273.
Stevens, Q., Leorke, D., Dovey, K., Awepuga, F. and Morley, M. (2024) ‘From “pop-up” to permanent: Temporary urbanism as an emerging mode of strategic open-space planning’, Cities, 154, 105376. https://doi.org/10.1016/j.cities.2024.105376.
Thapa, S. and Pernigotto, G. (2025) ‘Adaptive Thermal Comfort in the Different Buildings of Temperate Climates—Comparison Between High-Latitude Europe and Mountainous Himalayas in India’, Sustainability, 17(2), 404. https://doi.org/10.3390/su17020404.
Wilhite, H. and Shove, E. (1998) ‘Understanding Energy Consumption: Beyond Technology and Economics’, in Proceedings of the ACEEE 1998 Summer Study on Energy Efficiency in Buildings. Washington, DC: American Council for an Energy-Efficient Economy.
Zahnow, R. (2024) ‘Place type or place function: What matters for place attachment?’, American Journal of Community Psychology, 73, pp. 446–460. https://doi.org/10.1002/ajcp.12722.