Manufactured from a natural composite of hemp shiv and hydrated lime, these blocks are produced without synthetic binders, toxic chemicals or heavy processing.

They offer an internal and external walling solution that can also be used to build masonry solid walls, solid floors and insulate roof spaces, ideal for new build and retrofit projects. Thanks to the hemp–lime mix, the blocks deliver excellent thermal and acoustic performance, vapour permeability, resist moisture and reduce maintenance over time. Finishes such as lime‑based renders or natural plasters can be applied, supporting a healthy indoor environment. Because the hemp shiv removes much of the resin‑bearing stalk and binds into a stable matrix, the final material is dimensionally stable and breathable. Available across the UK via The Hemp Block Company and partners.
The blocks offer strong sustainability credentials, being bio‑based and having low embodied carbon, with the company explicitly promoting hempcrete’s natural credentials.