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30 ultra-energy efficient homes completed in Somerset

Stonewater has built the homes to Passivhaus standards, helping customers live more comfortably for less.

Date published: 04 August 2026

Leading affordable housing provider, Stonewater, has completed 30 ultra-energy efficient homes in Somerset that will help customers live more comfortably for less.

The homes in South Petherton have been delivered under the second phase of development and built to Passivhaus standard – a set of principles to create properties that use less energy for heating while maintaining comfort.

They feature enhanced insulation, airtight construction, mechanical ventilation with heat recovery (MVHR) systems and roof-mounted solar PV panels, helping reduce heat loss and lower energy consumption.

As well as contributing to Stonewater’s net-zero ambitions, the features support wider sector and government goals to combat climate change, while reducing bills for customers.

The development provides a mix of one-, two-, three- and four-bedroom homes for affordable rent, helping meet local housing need in line with Stonewater commitment to sustaining rural communities.

An example of the homes at the scheme in South Petherton

Delivered in partnership with Somerset Council, Fisher & Dean Construction Ltd and Blue Spruce Properties Ltd, the scheme has transformed a former brownfield site into a new sustainable community.

The development also includes landscaped communal green spaces, biodiverse planting and a community garden, featuring a public art piece in the form of stepping stones. Created by artist Graeme Mitchson, the artwork takes its inspiration from the word "Flax," reflecting the site's connection to the town’s agricultural heritage and its former Flax Mill which once served as a hub for processing locally grown produce.

To mark the completion of the scheme, an official opening event was held on 20 July.

The event was attended by Stonewater's Chief Executive Jonathan Layzell and Group Director of Development Matthew Crucefix, alongside representatives from development partner SevenCapital, principal contractor Fisher and Dean, architects BoonBrown, Somerset Council, legal advisers Clarke Willmott and public artist Graeme Mitchson.

Matthew Crucefix said: "Completing this development is an important milestone for Stonewater and for the local community in Somerset.

"These high-quality homes will provide local people with affordable places to live while helping reduce energy bills through Passivhaus design and renewable technology. At the same time, the development creates attractive shared spaces that encourage customers to connect with their neighbours and enjoy the outdoor environment.

"We're proud to have worked alongside our partners to deliver a scheme that combines sustainability, affordability and community, and we look forward to welcoming customers into their new homes."

Councillor Sarah Wakefield, Somerset Council’s Lead Member for Adults Services, Housing and Homelessness, said: "It's fantastic to see these much-needed affordable homes completed and ready to welcome new residents.

"This development will help meet local housing need while providing high-quality, energy-efficient homes that are built to last. Working in partnership with organisations such as Stonewater is essential to delivering the affordable homes our communities need, and we're pleased to have supported this scheme."

Nils Richard, Senior Associate Solicitor at Clarke Willmott, said: “It’s fantastic to see the next stage of the project taking shape.

“Stonewater’s investment is delivering high-quality affordable homes that meet local need, and we’re proud to have supported the project throughout its progression.

“Both phases have delivered 100 per cent affordable housing, with the latest homes built to Passivhaus standards, making them exceptionally energy‑efficient, comfortable and affordable to run. That focus on sustainability and long‑term efficiency will make a real difference to local people.

“It was also a pleasure to meet residents and reconnect with Stonewater’s team, the architects, contractors and council officers.”

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