Roger began making the model in 1987 following his retirement as County Planning Officer for Hampshire County Council, finally completing it in 1996.
The model measures 4.5 metres across. The gentle hills of Winchester are built in polystyrene, while its buildings are made from sheet plastic. Roger used photographs taken about the same time as the Ordnance Survey map was produced to make sure that details of the buildings and streets were as accurate as possible. He also used photographs taken by his grandfather during a trip to Winchester in the late 1800s as a reference.
Finding a home for an object as large as the model was not an easy task. Although it was displayed temporarily at both the Great Hall and Winchester Science Centre, for many years it remained in storage. Roger died in 2015, leaving the model as a legacy to the city and its people. A long-term home was agreed during the same year, and in 2017 the model was put on display at City Museum.