Black Barn Deep Retrofit, Cambridgeshire

This project involves conserving and retrofitting a 16th-century grade-2 listed oak frame barn in Cambridgeshire. Our clients, Nick and Martine, aim to transform it into a beautiful home while preserving its original character. The main challenge is preserving the traditional timber frame, which is structurally compromised in many areas. To address this, Studio Bio (UK Hempcrete’s in-house design studio) designed a separate supporting steel and timber structure to enhance the barn’s overall performance.

We look forward to watching this project progress on site – check back for more photos as we receive them.

do you have a bio-based construction project? Contact us to find out about our services

Our Design Studio

Established in 2019, our in-house design studio, Studio Bio, developed out of an industry demand for designers with a specialist knowledge of bio-based construction and detailing.

Our director, Alex Sparrow, leads a growing team, designing buildings from a material-first perspective, to ensure that the implications of building with hempcrete are considered from the very first drawing. To find our more about our services, click the button below.


We have a range of packages for each design stage to suit your project. Call us on 01629 343143 or email to discuss how we can get involved with your project! Alternatively, you can fill out our 2-minute contact form to tell us more about your project: