A Forest Datum is the physical manifestation of an imaginary line drawn between the forest and the sea, ending at the Jurassic coast 12.5km to the south. It marks a horizontal line in a sloping terrain, and a counterpoint to the verticality of the forest.

The project uses crown timber – sourced from the pruning of very small branches high up in the forest canopy – in an experimental structural system. Each uniquely forking branch is located using a bespoke jig that situates it within a repeatable cell structure. The project won a 2025 Wood Award in the Bespoke category.