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Cattail Insulation and Reed Roofing in Community Microhomes

Authors:
Nicholas Niemen, Olle Björkebaum
Cattail Insulation and Reed Roofing in Community Microhomes
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Using locally sourced cattail for insulation and reed for roofing, the design integrates a wetland to enhance biodiversity while providing microhomes that foster community engagement in Rinkeby and Tensta.
5 key facts about this project
01
Microhomes are built with locally sourced cattail for insulation.
02
Reed thatching enhances thermal efficiency and aesthetics.
03
A wetland integrates natural flood management with community space.
04
Shared community hubs encourage resident collaboration and involvement.
05
Walking paths connect Rinkeby, Tensta, and the surrounding environment.

Strå addresses the social and environmental challenges found in Rinkeby and Tensta, suburbs of Stockholm. These areas are labeled as "especially vulnerable," encountering issues such as high crime rates, unemployment, and few educational opportunities for residents. The design focuses on creating microhousing paired with shared resources to promote community engagement and resilience.

Microhousing Concept

Small housing units serve as individual homes as well as collective spaces for residents. The design draws inspiration from Sweden's "egnahemsrörelsen," which aimed to provide affordable housing to working-class families. Residents are encouraged to take part in carpentry apprenticeships, allowing them to build their own homes. This involvement fosters a sense of ownership and promotes a direct connection between inhabitants and their living environment.

Environmental Integration

A key feature of the design is a wetland created in the southern section of the grass field separating Rinkeby and Tensta. This wetland addresses flooding issues—a concern due to the area's low elevation. Besides serving as a functional solution to water management, it enhances local biodiversity. Walking paths throughout the wetland promote accessibility, encouraging interaction among residents from both suburbs.

Materiality and Construction

The choice of materials is important for functionality and sustainability. Reed and cattail are utilized as locally sourced materials. Reed will thatch roofs and facades, improving thermal performance. Cattail, cultivated within the wetland, will provide insulation in the microhomes, enhancing energy efficiency.

Microhomes will rest on polished, carbon-neutral stainless steel plinths, which elevate the structures off the ground. The reflective nature of this steel creates an appearance of floating homes. This thoughtful design approach encourages community interaction and emphasizes ecological awareness, presenting a modern vision for urban living in the suburbs.

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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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