Public spaces remain some of the most dynamic sites for unbuilt architectural experimentation, revealing how cities and architects can imagine accessibility, gathering, and civic identity. In this curated Unbuilt edition, submitted by the ArchDaily community, the selected proposals examine parks, pedestrian corridors, cultural landscapes, and open-access urban environments that invite people to meet, move, rest, and participate in collective life. Rather than treating public space as leftover terrain, these projects position it as essential infrastructure—shaping urban health, memory, and social interaction.
Cities bring together the best and worst of the human condition. They concentrate opportunities for work, social networks, and cultural production, but they also expose deep social inequalities. Among the many forms of urban exclusion are limited access to transportation, housing, leisure, or safety issues. One form that is rarely discussed is thermal inequality. In lower-income neighborhoods, where there are fewer trees, parks, and permeable surfaces, heat accumulates and thermal discomfort dominates, resulting in higher energy consumption and health risks. As concern about the climate crisis grows, this discussion becomes more urgent: extreme heat is no longer just a climatic phenomenon but also a spatial expression of inequality.
This international competition invited architects, artists, and designers to create visionary public sculptures that reflect Saudi Arabia's rich cultural heritage and forward-looking ambitions. As the Kingdom undergoes a profound transformation under Vision 2030, this initiative—organized in partnership with the Mujassam Watan Initiative—called for works that engage with both history and future, tradition and innovation, within the public realm.
Domestic workers in Hong Kong and Singapore are the city's quiet infrastructure. In Hong Kong alone, there are a total of roughly 300,000 domestic workers, serving a portion of the approximate 2.7 million households. Their care labor sustains dual-income family routines: childcare, eldercare, cooking, cleaning, and the everyday logistics that make professional life possible. Yet the people who hold this balance together remain largely invisible in policy—and, crucially, in space.
On Sundays in Hong Kong's financial district, that invisibility becomes visible. Elevated walkways and podium forecourts—underused on weekends—turn into ad-hoc commons. With cardboard mats, small tents, towels, food and water, and a music speaker or two, domestic workers assemble places to sit, rest, and socialize. These improvised rooms in the city are often their only chance to exercise spatial agency—something they rarely have in the homes they maintain or in formal public infrastructure. In the absence of sanctioned, serviced places for rest, quieter bridges and passages become practical stand-ins.
The habit of sitting at the table and sharing a specific moment with other people has been present for centuries in the most diverse cultures. The Greek Symposium, Roman Convivium, Medieval Feasts and Banquets, and Parisian Salons are just a few examples of how this custom was historically built and has been relevant in social and political negotiations, intellectual discussions, and philosophical debates.
Commensality often serves as a ritual for bonding, negotiation, and celebrating important events. In many Spanish-speaking cultures, the stretch of time after the meal when the entire family stays seated and talks is so present that there is a word for it: sobremesa — literally translated as "upon the table" (though in Spanish it more accurately means "dessert" or "after-meal conversation"). But, despite often being associated with sharing a meal, the table can be considered a flexible platform open to many possibilities for appropriation and interaction.
Adolescent Girls Co-Design and Build their Public Spaces in Beirut June 2024. Image Courtesy of CatalyticAction
Make Space for Girls (MSFG) is a London-based charity that campaigns for public spaces and parks in the United Kingdom to be more inclusive of teenage girls. The organization conducts research on how public spaces are used and designed, raises awareness about perceived inequalities in their use, and collaborates with public and private institutions to promote the representation of teenage girls in the planning and design of outdoor environments. Their research indicates that their exclusion from the design of parks and public spaces often leaves them without places where they feel welcomed or valued, and that parks and public spaces for older children and teenagers are currently designed for the default male. From 8 to 15 October, the organization is running a fundraising campaign to support the implementation of its new three-year strategy aimed at promoting more inclusive public spaces.
The City of Copenhagen has announced Team SLA as the winner of a design competition to create a new, large-scale urban park in Nordhavn. The project, titled "Nordør – New Park", was designed by Team SLA and By & Havn, and envisions a 30-hectare (75-acre) coastal nature park. Led by the design studio SLA, Team SLA includes VITA Engineers, Urban Agency, Aaen Engineering, Pihlmann Architects, Buro Happold, Kerstin Bergendal, Holdbart, and Aiming Spaces.
A "nature park" is a protected area where conservation is balanced with sustainable development and human use. It often encompasses human-shaped cultural landscapes and integrates strategies for regional development, supporting local communities and promoting the conscious use of the land. This framework allows the proposal to be understood as a platform for recreation, eco-tourism, environmental education, research, and regional growth.
As cities and landscapes evolve, architecture is increasingly asked to support well-being,performance, and collective experience. From stadiums that honor deep cultural memory to intimate wellness spaces that foster restoration and connection, sports and wellness typologies are expanding beyond mere functionality. They create environments where movement and health intersect with design quality, sustainability, and social meaning. Today, these spaces range from elite training grounds and recreational clubs to contemplative retreats and inclusive public amenities, shaping how communities gather, heal, and celebrate shared identity.
This selection of unbuilt proposals submitted by the ArchDaily community illustrates that diversity. In São Paulo, Luiz Volpato Arquitetura reinvents the historic Santos Futebol Clube stadium with a geometry that preserves fans' memory while introducing new commercial and social uses. In Hanoi, Van Aelst I Nguyen and Partners bring filtered light and fresh air to a dense urban sports complex. In Dubai, RSP proposes Haven, a residential development anchored in holistic wellness and nature-driven experiences, while India's Tropic Responses imagines Aira Club as a climate-conscious leisure hub. High in the Himalayas, Gadasu + Partners carve a meditative spa into mountain stone, and in Isfahan, Arsh4d Studio rethinks segregated women's parks to create inclusive, future-oriented civic space.
The architect's role has traditionally been relatively well-defined: design a building, direct the project, coordinate logistics, and guide construction through to completion. As specialised fields have proliferated, together with a rapidly changing social economy, the practice of architecture has diversified, opening multiple paths for how architects can contribute to society.
Since the 1980s, one of the most consistent shifts may have been the separation between the "design architect" and the "architect of record." Where a single office once carried a project from concept to completion, internationalisation—alongside cross-border work, licensure regimes, procurement models, and liability structures—has encouraged a split. Design teams increasingly set the conceptual and schematic direction, then hand over the design development to local record architects for technical detailing, approvals, and site execution. The model has clear advantages—sharper expertise, efficiency, and often profitability (or services offered at reduced fees)—but it also segments the profession and can distance authorship from delivery.
What, then, might the next shift be, and what new synergies could redefine the architect's role? How should architects adapt to the changing professional climate? One promising trajectory is a turn from singular, permanent objects toward ongoing placemaking—iterative, context-specific programmes that prototype, test, and refine spatial ideas in public. Rather than producing one large, iconic work that fixes a site for decades, this model privileges cycles of making, use, evaluation, and adjustment at the community scale.
The noise of overlapping conversations, the flashing lights of a billboard, hurried footsteps on the sidewalk, and the constant hammering of a nearby construction site: public spaces are sometimes experienced as environments where stimuli accumulate and often overwhelm us. Each person perceives and responds to these sensory inputs differently, and recognizing neurodiversity means understanding that some individuals require more time to adapt, slower-paced journeys, or more gradual interactions with their surroundings. These encounters raise fundamental questions about contemporary public space: how can it accommodate the diversity of ways people perceive and inhabit it? How can we envision it as a space that embraces all ways of experiencing it?
As cities continue to develop, we are seeing ever more well-planned, thoroughly executed, and tightly regulated approaches to shaping urban centres and their surrounding spaces—for better and for worse. As codes, restrictions, and guidelines improve and tighten, urban environments become safer, more balanced, and less prone to surprise. Yet the flip side is that highly managed districts can drift toward over-order and sanitisation, shedding the messy, accretive character that once produced alleyways, residual spaces, and unexpected sequences of movement—conditions often born from ongoing community improvisation in the grey zones of regulation.
In response, a growing number of initiatives around the world are proposing short-term urban installations that test alternate futures for the city. These works aim to provoke dialogue between what the city is and what it could offer its communities through thoughtful, context-specific spatial practices. One notable example is Concéntrico, the international festival in Logroño, Spain, conceived as an urban innovation laboratory. Marking its tenth edition, the festival is about to publish Concéntrico: Urban Innovation Laboratory, a book that surveys a decade of urban design and collective transformation shaped through successive editions of the festival. Its launch is paired with an international tour designed to share a decade of insights on collective transformation and design.
Play extends beyond its recreational dimension, unfolding as a social act that encourages children to learn, interact, be creative, and engage with their spatial context. As Johan Huizinga notes in Homo Ludens, it is a fundamental element of culture, where kids form bonds and explore ways of coexisting. When the architecture of play spaces excludes certain bodies or modes of participation, the collective experience becomes fragmented and loses part of its meaning. Designing with inclusion in mind, therefore, means recognizing that the actual value of play lies in its potential to be shared by everyone.
https://www.archdaily.com/1033205/inclusive-playgrounds-every-body-can-play-through-architectureEnrique Tovar
By Jeanette Fich Jespersen, MA, Head of the KOMPAN Play Institute, Head of the steering committee of the World Playground Research Institute, University of Southern Denmark, Vice-president of International Play Association, Denmark.
Play Landscape be-MINE / Carve + OMGEVING. Image Courtesy of Carve
Playgrounds are spatial instruments through which society projects its expectations on childhood, testing the boundaries between control and autonomy, exposure and protection. They regulate how children relate to space, to others, and their bodies — encoding, often invisibly, social norms, fears, and aspirations. In this sense, playgrounds are not peripheral spaces of leisure; they are political constructs shaped by specific ideologies about what childhood is and how it should unfold. Since 1989, the right to play has been formally recognised in the United Nations Convention on the Rights of the Child, affirming that play is a fundamental part of human development. To design a playground is not only to draw lines on a plan or to install equipment in a park; it is to define the conditions under which play is permitted, imagined, or constrained.
Foster + Partners has revealed designs for a retail plaza located on the northern bank of the Golden Horn in Istanbul, Türkiye. The project forms part of the larger Tersane master plan, which proposes to redevelop 1.6 kilometers of previously underutilized waterfront. The master plan integrates a mix of retail, residential, hospitality, cultural buildings, and landscaped public spaces, aiming to enhance access along the shoreline. The plaza sits within close proximity to several of Istanbul's historiclandmarks, drawing on the area's maritime and industrial heritage. The design's scale and material choices reflect this context, seeking to align with the site's historic layers while introducing a contemporary retail environment.
Contemporary Mexican market architecture frequently draws inspiration from its pre-Hispanic precedents. The Tlatelolco Market in ancient Tenochtitlan, for example, featured a large, stone-paved open square with designated "streets", which were divided into sections for specific goods, serving as a significant gathering point for social and economic exchange. Similarly, the tradition of the Tianguis, an ephemeral market typology within the broader Mesoamerican tradition, also arranged stalls in aisles within a public plaza, reflecting organizational principles seen in Tlatelolco. These historical models established a base for the tradition of marketplaces in Mexico and the countries in Central America, where they merge public space and structured layouts for commerce. Today, even though many of Mexico's commercial spaces, notably Mexico City's Central de Abasto and other markets such as the Jamaica, Merced, and San Juan Markets, have taken on a stationary approach to serving their communities, tianguis maintain their foothold in Mexican society.
When one thinks of public spaces, the image of a pool rarely comes to mind. Public spaces are the center of civic life, places where most interactions, activities, and behaviors follow strict social and cultural norms to ensure the safety and comfort of all users. In contrast, swimming and bathing represent something more intimate and primordial, a sensorial experience distinct from any other. In addition to the health benefits, the act of floating in space creates a break from everyday life and its constraints.
As social spaces, public baths, and pools offer an even more unusual experience. Here, regular conduct rules and norms no longer apply. Social nudity becomes the new norm, and, as people strip off their clothes, they also lose their status markers, transforming the pool into an egalitarian oasis. Across history, these often-discredited spaces offered a heightened social experience, fostering connections and bringing a new element to dense urban environments. As a typology present since antiquity, public baths and pools have also been a disputed space, as a manifestation of difficult topics such as gender and racial segregation, gentrification, and surveillance in contrast to the freedom they promise.
