Annette Chan

Net-Zero Sustainable Design Retrofit


This project seeks to retrofit the century-old villa of Andrea Camilleri, a famous Italian writer, into a sustainable, net-zero energy and water building. The existing house is a three storey building located at 8780 Via Trionfale in Rome, Italy. The proposed project features ground floor community event space for small lectures and poetry groups, a second floor office for the Camilleri foundation, a third floor residence for visiting writers, and a rooftop terrace and green roof.

To achieve a sustainable retrofit design, several strategies were employed to improve the performance of the building. The site was developed sustainably, with greenspaces for agricultural growth. Other areas featured permeable paving to support rainwater collection and stormwater management. Greywater reuse and blackwater treatment systems were also implemented. To improve occupant wellbeing, daylighting was optimized through the addition of electrochromic windows. As the existing load-bearing walls were maintained to allow for the reuse of materials, control layers were added to the envelope to improve thermal and moisture performance. Finally, photovoltaic panels were added to the roof to achieve net-zero energy for the overall project.








Toronto Metropolitan Department of  Architectural Science Toronto, CA.