The Royal Institute of British Architects Stirling Prize is a British prize for excellence in architecture. …The RIBA Stirling Prize is presented to “the architects of the building that has made the greatest contribution to the evolution of architecture in the past year.” …At Barrett’s Grove, the cross-laminated timber superstructure is left exposed, eliminating the need for plasterboard walls and suspended ceilings, cornices and skirting, tiling and paint. …The all-timber interiors, more common in Scandinavia than in the UK, slightly worried the client at first but he was reassured as soon as the units were put on the market.