The design looked towards sustainability by opting not to demolish the existing building, instead working with it, thermally upgrading its performance and utilising Cross Laminated Timber (CLT) as a lightweight and sustainable construction solution to form the kitchen extension. Cross Laminated Timber (CLT) allowed the super structure to be erected within two weeks. This creative cross discipline collaboration with timber engineers Eurban and structural engineers Webb Yates minimised the programme and the requirement for road closure on the tight urban site. This construction technology also allowed the existing foundations to be used - reducing the requirement for archaeological investigations on the sensitive medieval site. The CLT acted both structurally, thermally and internally as a warm durable finished product, offering a warmth and contrast to the planes created by the white plastered existing walls and rubber floor.