Holy Trinity Tulse Hill Straw Bale Build

Holy Trinity Tulse Hill Straw Bale Build
Written by esba

Project Data

Place:Tulse Hill Completion:2021 Construction:Hybrid with a timber frame partially supported by compressed straw walls Design:Jakub Wihan / StrawWorks Straw Builder:Workshops Visitable:No Press photos:No
Self Building:Workshops
Living Area:643m2 U-Value (Wall):W/m2K U-Value (Roof):W/m2K Categories: Hybrid System, Infill Construction, Projects UK, Straw Bale Lighthouse Project,

Winner of two gold awards at the National Building & Construction Awards, for Sustainability and Community Engagement

It is the largest urban straw-bale community self-build in Europe. It is one of the lowest impact construction solutions available.

Photos: Richard Dormandy, Straw Works

Designed by Straw Works and with training from SNaB so that it can easily be built by non-professionals, the project has involved over 500 volunteers of all ages and abilities since 2017. A hands-on, slow-paced approach has been used inspire, educate and empower people through sustainable construction.

Straw Works worked closely with Richard Dormandy, the inspirational vicar (@strawvic), the church community, and the Diocesan Architectural Committee (DAC) of the Anglican Church. Jakub Wihan of Straw Works were the lead designer and he has developed and maintained a close working relationship with Richard that means together they have been able to make sure all our environmental principles for a healthy, natural building can be realised without compromise. 

This is a hybrid building, with a timber frame partially supported by compressed straw walls. By building with natural materials and avoiding concrete, alongside the use of solar PV, heat pumps, and a carefully designed M&E system this has huge carbon savings, both in construction and in use. It is 108 tonnes carbon negative in construction, and will save approximately 10 tonnes of carbon per year, and is expected to last up to 200 years.

Using the flexible foundation designs they have been able to keep the depth of trenches far less than that required for poured cement, thus making it possible for non-professionals, under supervision from the School of Natural Building to build them themselves. This has resulted in a massive saving for the Church of £100,000!

For this building independent load tests were done on the car tyre foundations as there are some quite large point loads because of the posts. We are delighted to say all tests passed with flying colours – they have shown that car tyre foundations can carry loads of at least 1000KN/m2 – more than this building requires. 

You can read more about the project, which won two gold awards at the National Building & Construction Awards 2021, for Sustainability and Community Engagement here.

About the author

esba

The European Straw Building Association is an independent European association, devoid of any profit making motive. The object of the Association is to promote and develop the use of straw, as a sustainable way of building in all the senses of the term “sustainable”: renewable, ecological, healthy, energy and climate efficient, social and economic.
The Association is a federation composed of organisations and people particularly concerned with the use of straw in buildings.