Francesco Pierazzi Architects renovates Sawtooth HouseDesigned by Francesco Pierazzi Architects, Sawtooth House renovates and extends a Victorian home in Kingston upon Thames through a contemporary rear addition informed by the area’s industrial history. Replacing an outdated extension, the project introduces a distinctive double sawtooth roof that references the profile of nearby manufacturing buildings, including Middle Mill, formerly home to The Patent Cocoa Fibre Co. Ltd. New brick volumes respond to Kingston’s industrial character through varied brick bonds and textured facades, establishing a dialogue between the Victorian structure and the contemporary addition. Alongside the new extension, the existing Victorian house underwent a comprehensive retrofit designed to reduce operational energy demand and improve long-term building performance. Sawtooth House examines how targeted architectural interventions can extend the life of existing housing while responding to contemporary environmental requirements.