SDS Limited developed an innovative precast design for a 2,000m2 retail store in Hayes, London. The concept was developed in response to a request from the client to build the store in 20 weeks. Normal construction time for a store in the UK is 30 weeks. SDS Limited developed a unique precast system that was completely modular and required only 1 week pre-production design and approval time. As a result, the client can give the normal lead in time to contractors and still expect the store to be complete in a 20-week build programme.