Hemp-Lime Spray
The UK's leading hempcrete spray specialist — contractor, consultant, and trainer.
About
Hemp-Lime Spray is a Norfolk-based hempcrete contracting and consultancy business run by Graham Durrant, one of the UK's most experienced hempcrete practitioners. With over a decade of hands-on experience installing hempcrete across new builds, heritage restorations, and retrofit projects, Graham brings a rare combination of practical expertise and academic rigour to every project he takes on.
Graham holds a BSc (Hons) in Conservation Management and an MSc in Architecture in Advanced Environmental and Energy Studies — qualifications that inform his deep understanding of how buildings manage heat and moisture. His introduction to hempcrete came while living in France in 2006, and he went on to spend four years as Operations Manager for hempcrete projects at The Limecrete Company before founding Hemp-Lime Spray in 2015. Since then, he has installed hundreds of cubic metres of hempcrete across the UK and Europe, and has nothing but happy clients behind him.
Hemp-Lime Spray operates at the cutting edge of hempcrete installation, with Graham serving as the English-speaking agent for the French-built 3CM hempcrete spray machine — the industry's leading piece of dedicated hempcrete spray equipment. He collaborates closely with Will Stanwix of Hemp-Lime Construct to further research the material's boundaries and benefits, and has been invited to join the board of HempTank, the hemp policy think tank. Whether working on a large commercial build or advising a first-time self-builder, Graham's stated mission is simple: to make sure hempcrete projects go well.
What they offer
- Hempcrete spray installation — on-site contracting using a 3CM spray machine for new builds and retrofit projects
- Green building consultancy — project scoping, specification advice, and design support for architects, building designers, and private clients
- Self-build support — top tips, site setup, and hands-on guidance for owner-builders
- Contractor training — training and technical support for hempcrete contractors across the UK and internationally
- International workshops — demonstration and training visits for contractors developing hempcrete operations overseas
- Materials supply — UK-grown hemp shiv and bespoke UK-produced binder
Notable projects
- The Bright Building, University of Bradford — possibly the world's largest monolithic hempcrete building, achieving a BREEAM score of 95.2%
- The Master's House, Ledbury — RIBA West Midlands 2016 Building of the Year and Conservation Project of the Year; a Grade II* listed medieval complex now housing Ledbury Library
- Clayhill Farm, Lavenham — one of the first houses approved under paragraph 55 of the NPPF; a zero-carbon passive eco-house
- Running Hare Barn, East Ruston — a converted Norfolk threshing barn that reached the semi-finals of the regional building excellence awards
- Cardinham Chapel, Bodmin — a Grade II listed chapel converted to a private house using spray-applied hempcrete on stone walls
- 15th-century timber-framed restoration near Harlow — high-end renovation spraying hempcrete into original oak framing
Project photos
Photo: Graham Durrant / Hemp-Lime Spray
Photo: Graham Durrant / Hemp-Lime Spray
Photo: Graham Durrant / Hemp-Lime Spray
Photo: Graham Durrant / Hemp-Lime Spray
Photo: Graham Durrant / Hemp-Lime Spray
Photo: Graham Durrant / Hemp-Lime Spray