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Composting System and SIPs Framework for Compact Urban Living

Author:
Andrew Shaper
Composting System and SIPs Framework for Compact Urban Living

Project in-detail

Utilizing structural insulated panels and a composting system, this compact microhome in Kibera offers a sustainable living solution designed to enhance safety and community interaction amidst urban challenges.
5 key facts about this project
01
Utilizes structural insulated panels for energy efficiency.
02
Incorporates a rainwater collection system for sustainable water management.
03
Features multiple entry points for enhanced security and privacy.
04
Includes a front shop area to support local economic activity.
05
Integrates an aerobic composting system for waste management.

The Kibera Microhome is located in Kibera, Nairobi, one of the largest urban slums in Africa. Designed to confront the challenges of high density and scarce resources, the microhome focuses on safe and functional living. It presents a thoughtful concept that maximizes space in just 25 square meters, making efficient use of available resources and fostering community interaction among residents.

Spatial Efficiency and Flexibility

The layout of the microhome is carefully structured to optimize both private and shared spaces. This design allows residents to adapt their environment to suit their daily needs. With multiple entry points, security is enhanced, creating a buffer against external threats. This arrangement encourages privacy for individuals while simultaneously building a sense of community among the occupants.

Integration of Outdoor Spaces

Outdoor areas are an essential part of the microhome’s design. They provide spaces for gardening, cooking, and socializing, allowing residents to extend their living space outside. This connection to nature improves living conditions and encourages interaction with neighbors. The inclusion of a small shop at the front allows residents to engage in commerce, providing income opportunities and supporting the local economy, which is vital in an area facing economic challenges.

Sustainable Systems and Materials

The project utilizes concrete blocks for the foundation, ensuring stability in a challenging environment. Structural insulated panels are used to create the building's thermal envelope, promoting energy efficiency vital for off-grid living. Natural light and ventilation are maximized through a skillion roof and strategically placed louvre windows, contributing to a comfortable and livable indoor environment. Additionally, rainwater collection and solar panels enhance sustainability, allowing residents to manage resources effectively.

Innovative Waste Management

The design also includes an aerobic composting system to handle waste. This feature converts refuse into nutrient-rich water suitable for gardening. By managing waste in this way, the microhome addresses sanitation and promotes a sustainable lifestyle. Growing food on-site not only supports food security but also helps to foster a sense of self-sufficiency among residents.

The Kibera Microhome combines these elements to create a living space that meets essential needs while enriching the daily lives of its occupants. It serves as a practical model for resilient living in difficult urban conditions.

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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
competition now

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