Chilmark House is a late C17 and early C19 limestone ashlar symmetrical principal elevation late Georgian style with Doric columns and pilasters. The property has been radically reworked circa 1830 and an extension added in 1990.

The project consisted of reworking the internal Kitchen space removing the unsympathetic internal features including exposed oak beams and timber flooring. The main house works including building a new timber Orangery extending the Kitchen creating a breakfast room that included perimeter window seating. Listed Building Consent was granted to alter the second staircase helping to improve the rear Hall and first floor Bathroom spaces.

The Orangery included a deep projecting string with a dentil bracket detailing to match the main house and a parapet with a new pitched central roof. The raised central pitched roof used reclaimed Welsh slates and allowed for a semi-circular window with arched beading above the double doors to match the existing window.