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Bridging Urban Density with Steel and Polycarbonate Microhomes

Author:
Louise Van der meulen
Bridging Urban Density with Steel and Polycarbonate Microhomes

Project in-detail

Utilizing steel cross bracing and a curtain wall system of polycarbonate and glass, this microhome effectively transforms urban bridges into functional living spaces that enhance community density and sustainability.
5 key facts about this project
01
Utilizes existing bridges as foundations for microhousing.
02
Features a curtain wall system for enhanced natural light.
03
Incorporates rainwater harvesting for sustainable resource management.
04
Designed with steel cross bracing for structural stability.
05
Promotes community integration in urban settings.

The Bridge Microhome is an innovative solution to the housing challenges in Pretoria's Central Business District. It addresses issues of segregation and low density, which affect the community's cohesion and access to services. By reimagining bridges as living spaces, the design aims to create a more interconnected urban environment. This approach enhances density without taking away from green areas, thus providing much-needed housing while promoting sustainable living.

Structural Integrity and Functionality

The microhome is designed for efficiency and practicality. It features a Murphy bed that allows the living area to adapt between day and night uses, making the most of limited space. The kitchen, dining, and working areas are arranged as multifunctional spaces, ensuring residents can perform daily tasks without feeling cramped. A separate bathroom adds essential amenities, ensuring comfort and privacy for those who live here.

Material and Construction Approach

Steel cross bracing provides stability and durability to the structure, helping it withstand various environmental conditions. The curtain wall system includes glass and polycarbonate panels, allowing plenty of natural light to fill the interior. This design choice creates a bright living atmosphere and links indoor spaces with the outdoors, enabling residents to experience their urban surroundings without barriers.

Sustainable Systems

Sustainability is integrated into the design in several meaningful ways. Solar energy collection systems reduce dependence on traditional power sources, contributing to energy efficiency. Rainwater harvesting captures important resources during wet weather, while a municipal water connection ensures consistent access to clean water. The septic tank effectively manages waste. A quantum filtration system further enhances water quality, improving the living experience within this compact home.

Design Details and Aesthetic Elements

Thoughtful design details throughout the microhome create a sense of community within the urban environment. The use of perforated metal sheets supports ventilation and maintains visual connections between spaces. This design promotes a balance between private and communal living. The combination of light and shadow within the structure, along with the adaptive use of existing infrastructure, results in a microhome that is both functional and effective in meeting the needs of urban residents.

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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

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