Murray Grove was the first tall urban housing project to be constructed entirely from prefabricated solid timber, challenging the boundaries of engineered timber and proposing the material as a viable alternative to concrete and steel. A 9 storey residential block, it was the tallest engineered timber building in the world on completion in 2009. The structure of this revolutionary project is 100% CLT above first floor. All walls, floor slabs and lift cores are formed of solid timber. The connections between the panels ensure that the walls and floors act together like a honeycomb, providing a stable and structurally efficient building. Completed in just over a year, the timber structure was built in just 9 weeks. The pixelated façade, made up of 2,500 individual panels in three hues is arranged to capture the way in which shadows fall across the building. The lightweight cladding panels are manufactured from waste wood fibre. This exemplar project spearheaded the introduction of CLT in the UK, pioneered an international movement in tall timber buildings, and won the RIBA President's Medal for Practice based research in 2010.