10 Carbon-negative, zero-waste and net energy positive houses in Walthamstow with GS8 Developments.
Homes that are not just carbon neutral but carbon negative. Not just low energy but energy positive. Not just less waste. Zero waste. No development globally has achieved these combined standards before.
Until now – introducing The Arbour
Overview
The Arbour is a landmark project that has set a new benchmark for sustainable, community-driven housing. Located in Walthamstow, East London, this development embodies the principles of carbon negativity, energy positivity, and zero-waste construction, making it a truly Planet Positive housing development.
Background
In 2019, boehm lynas began working with GS8 to transform a former backland industrial estate into a residential community that prioritised environmental sustainability. This project became a model for regenerative design, aiming to create homes that would not only be environmentally responsible but also socially inclusive.
Planning and Design
The planning process balanced traditional considerations like context and programme with a focus on sustainability. Every design decision was made with "Science-led design" in mind, scrutinised against strict environmental pillars. Key design strategies included:
Reducing the exterior surface area to minimise heat loss.
Optimising building orientation for solar heat gains and energy generation.
Implementing a robust air-tightness strategy with the use of high-performance insulative materials.
Construction and Waste Reduction
A core element of The Arbour’s success was its zero-waste approach. Materials from the site were deconstructed and reused, such as concrete blocks for beam and block floors and metal structure elements used for bike storage. Additionally, excess earth from the site was repurposed into rammed earth walls, which became part of the interior design. This proactive approach to reusing materials reduced the need for new materials and eliminated waste sent to landfill.
Building Materials and Sustainability
The development prioritised low-carbon materials and sustainable sourcing:
Timber frames and air-tight construction methods ensured energy efficiency.
Locally sourced materials were used throughout the building, from bathroom finishes to joinery made on-site from off-cuts.
Recycled site waste was incorporated into worktops, and tiles were made from old washing machines and yoghurt pots.
Community and Social Impact
Beyond the environmental focus, The Arbour aimed to foster a strong sense of community. A shared space was created from an old garage to serve as a "reuse centre," where residents can exchange items like furniture and gardening tools. The central communal garden and green spaces were designed to bring residents together and promote social interaction.
Results and Achievements
We are proud that The Arbour has actually exceeded the high energy target we provisionally set. With a carbon-negative footprint, the development generates more energy than it consumes annually. Post-occupancy feedback confirms that the homes remain comfortable year-round, with residents experiencing minimal heating requirements. The innovative use of materials, energy-efficient design, and community-centred approach make The Arbour a standout example of how sustainable housing can integrate seamlessly into urban environments.
Awards and Recognition
The Arbour was recognised for its excellence in sustainable design, winning the RIBA London Award 2024, RIBA London Sustainability Award 2024, and RIBA National Award 2024.
This project exemplifies our commitment to designing buildings that push the boundaries of what’s possible in sustainable urban living, delivering homes that are not only environmentally responsible but also enhance the communities they serve.
