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Sedum Roofed Modular Units Enhancing Urban Living in London

Authors:
Alexander Herrera Rojas, Katarzyna Ziolkowska
Sedum Roofed Modular Units Enhancing Urban Living in London
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Constructed with prefabricated modules and topped with a sedum roof, these residential units integrate green design with urban living in London to create accessible and sustainable housing solutions.
5 key facts about this project
01
Modular units designed for quick assembly and relocation.
02
Sedum roofs incorporated for improved insulation and biodiversity.
03
Balcony and winter garden elements enhance outdoor living.
04
Ground-level commercial space preserved alongside residential units.
05
Public pathways established to promote community interaction.

The design addresses London’s housing shortage with a modular approach that seeks to improve affordability and livability across different urban settings. It is developed in several locations, including mixed-use areas, residential neighborhoods, and along the river. The focus is on providing efficient housing solutions that cater to a variety of socio-economic groups while promoting sustainable practices.

Mixed-Use Context at 1 King's Mall

In the mixed-use area of 1 King's Mall, prefabricated modules are placed above an existing shopping center. This design uses the space efficiently, allowing for ground-level commercial activities to remain while introducing necessary residential areas. The central courtyard serves as an important amenity, encouraging social interaction among residents. This layout fosters connectivity, making it easier for people to access public transport and local services.

Residential Context

In a residential neighborhood, the project replaces an old office building near schools and townhouses with modular units. These new units are designed to connect visually and physically to the surrounding green spaces. Balconies and winter gardens enhance the living experience, while the building’s façade features a push-pull design that integrates outdoor space into home life, aligning with the architectural style of the area.

Riverside Context

Along the riverside, the plan revitalizes a residential estate by reorganizing its layout. The modular arrangement creates a public pathway that runs alongside the river, offering spaces for recreation while protecting existing green areas. This design encourages community use and engagement, as it links housing with the nearby natural environment, enhancing the overall appeal of the location.

The project incorporates materials that support its goals of efficiency and sustainability. External walls include insulation to improve energy performance, while the warm roof features an extensive sedum layer to promote green space. Steel substructures provide the necessary stability for modular designs, complemented by double-glazed full-height windows and doors that maximize natural light and thermal comfort. Glass balustrades on terraces enhance views, connecting indoor living to the outdoor setting while maintaining safety and aesthetics.

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The Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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