BONWICK

Heritage Consultancy

Historic Buildings

The Gatehouse, Chesham

A jettied survivor of an historic street

A Grade II listed town house dating from the 16th century, the Gatehouse was once part of a terrace of timber-framed buildings but later became semi-detached.

It was extensively refurbished in the 1970s when the timber frame was infilled with cement blocks. The combination of incompatible materials within the structure led to extensive decay. By 2007 the building was at risk of collapse.

Bonwick HC was asked to produce survey drawings in advance of essential conservation work. This jettied building has been much altered over time, and the drawings show that the first floor overhang on the south side has been lost.

A repair scheme designed and managed by Oxley Conservation Ltd reinstated the structural performance of the Gatehouse. In addition to essential repairs, insulation was added to the walls, floor and roof, all using sustainable materials.