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Salvaged Concrete and Reclaimed Timber Form a Compact and Sustainable Living Solution

Salvaged Concrete and Reclaimed Timber Form a Compact and Sustainable Living Solution
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Reclaimed bricks and salvaged concrete create a compact microhome that integrates rainwater harvesting and passive solar heating, emphasizing sustainable living in an urban environment.
5 key facts about this project
01
Reclaimed bricks sourced from local buildings minimize the environmental impact of construction.
02
Salvaged concrete elements enhance structural integrity while reducing waste.
03
The bent A-frame design optimizes space and promotes natural ventilation.
04
Integrated rainwater harvesting systems support sustainable water use.
05
Utilization of second-hand windows maximizes natural light and energy efficiency.

## Overview

This microhome design, submitted for a competition focused on the United Nations' Sustainable Development Goals (SDGs), addresses key challenges in housing, resource management, and sustainable living within the context of South Africa. The project aims to provide an efficient living space that promotes environmental responsibility through innovative use of materials and energy systems.

## Spatial Organization

The microhome spans 25 square meters over two stories, facilitating a compact yet functional living environment. The ground floor features an open-plan layout that merges the living and kitchen areas, offering direct access to a bathroom. On the upper level, the sleeping area is designed to optimize vertical space, fostering an open and airy atmosphere. A bubble diagram illustrates the thoughtful arrangement of these spaces, emphasizing flow and functionality.

## Materiality and Sustainability

The microhome employs a variety of reclaimed materials that align with its sustainability objectives. Reclaimed bricks and concrete serve as foundational elements, minimizing the need for new resource extraction. Second-hand windows augment natural light and ventilation, while recycled timber is utilized for structural components, ensuring both cost-effectiveness and robustness. CemCote, a durable finishing material, is applied to walls to reduce maintenance and environmental impact.

Additional features include an angled roof designed for rainwater harvesting and large window openings on the eastern facade that facilitate passive solar heating. These design elements reflect a contemporary approach to addressing housing shortages and environmental challenges, emphasizing functionality and aesthetic appeal while prioritizing resource efficiency.

## Environmental Integration

The project incorporates landscaping that enhances the natural surroundings and supports local ecosystems. Native plant species are utilized to bolster biodiversity and reduce irrigation needs, creating a harmonious relationship between the microhome and its environment.

An analysis of construction costs reveals that using salvaged materials provides significant financial savings relative to conventional building practices, establishing a viable model for future sustainable housing initiatives.

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Vancouver Tall Challenge: Building Higher Downtown

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Competition organisers

The Vancouver Tall Challenge: Building Higher Downtown is an international architecture competition organized by Buildner in collaboration with the City of Vancouver and the University of British Columbia’s School of Architecture and Landscape Architecture (SALA). The competition invites architects, designers, planners, and creative thinkers to explore innovative approaches to tall buildings in Vancouver’s downtown core, focusing on sustainability, livability, urban density, public space, and the city’s strong connection to nature. As Vancouver continues to grow, participants are challenged to rethink how vertical development can enhance urban life and contribute to a more vibrant, inclusive, and resilient city identity.

The competition offers a total prize fund of $15,000 CAD, with winning proposals selected by an international jury of architects, planners, academics, and city-building professionals. Key dates include the final registration deadline on October 29, 2026, submission deadline on November 30, 2026, and winners announcement on January 26, 2027. Full competition details, requirements, and registration information are available at architecturecompetitions.com/VancouverTallChallenge

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