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Vertical Circulation and Community Spaces Enhanced by Cross Laminated Timber

Author:
Kévin Petitjean
Vertical Circulation and Community Spaces Enhanced by Cross Laminated Timber
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The use of Cross Laminated Timber defines a new approach to urban housing in San Francisco, integrating vertical circulation with community-focused spaces to effectively address local housing needs.
5 key facts about this project
01
Community spaces incorporate planters as railings to enhance urban biodiversity.
02
Centralized utilities optimize service distribution within the building.
03
Prefabricated housing modules adapt to demand and reduce construction time.
04
Vertical circulation areas enhance safety while maintaining aesthetic cohesion.
05
Rooftop garden serves as a communal area for social interaction and relaxation.

The design is located in San Francisco, a city dealing with serious housing challenges, including high rates of homelessness and a pressing demand for affordable housing. The project aims to tackle these urban issues through a modular approach that prioritizes efficiency and sustainability. The overall concept focuses on creating adaptable living spaces while fostering community connections among residents.

Materiality and Structure

The main structure uses Cross Laminated Timber (CLT) as the key building material. It is combined with concrete for the vertical circulation areas. This choice not only provides safety in the event of a fire but also supports the project’s goal of reducing environmental impact by utilizing renewable resources. The selected materials reflect a commitment to both ecological responsibility and practical design.

Community-Focused Design

The layout effectively accommodates more than 400 residents with a variety of housing options. These include ground floor studios and duplex units, ensuring diverse living arrangements for different individuals. The design emphasizes communal areas that help build social ties among residents. Planting areas around the building enhance both aesthetics and urban biodiversity, while also acting as natural barriers within the city.

Internal Organization and Amenities

Inside, the design is organized around a central landing that connects the residential units, promoting interaction among residents. Outdoor spaces are thoughtfully set back from the facade, allowing residents to enjoy their private areas while also engaging with the outside world. Shared amenities, such as a rooftop garden and a public bar, encourage social interaction and create opportunities for community engagement and cultural exchange.

Attention to Detail

Utilities are efficiently centralized in the concrete vertical circulation zones, simplifying the distribution of essential services like electricity and water. This organization enhances the building's functionality while maintaining an appealing environment. The incorporation of flexible spaces encourages various activities, enabling residents to hold community meals, partake in exercise classes, or gather for social events. The careful arrangement of these details results in a design that balances human needs with environmental considerations, emphasizing a connection between people and their surroundings.

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Kingspan MICROHOME 2026: Building Less to Create More

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Competition organisers

The Kingspan MICROHOME 2026 competition invites architects and designers worldwide to rethink small-scale living by creating an off-grid, modular micro dwelling under 25 m². Now in its 11th edition, the contest emphasizes sustainable, innovative, and human-centered design that demonstrates how compact living can have a big impact.

With a €100,000 prize fund, entries will be evaluated for originality, efficiency, and their response to contemporary environmental and social challenges. The competition is open to everyone, with submissions allowed individually or in teams of up to four. Registration closes on 30 September 2026, and winners will be announced on 15 December 2026.

By celebrating creativity within strict limits, MICROHOME 2026 continues to push the boundaries of compact architecture and sustainable living.

MICROHOME 2026

Design a new concept of small-scale home and share a prize fund of 100,000€

100,000 € Prize Fund / Kingpsan Edition #11 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 September 2026

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