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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

Project in-detail

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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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
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