The Franco Center Apartments building is a five-story senior living facility in Stockton, CA, with retail spaces, community rooms for the residents, and office space for staff on the ground floor. The residential spaces occupy the second through fifth floors. Constructed in 1967 and renovated in 2007, it is built of concrete masonry. Thirty-five “smart” ceiling fans were installed in the common areas of the building. On-board sensors detect occupancy, temperature, and relative humidity, helping reduce energy usage and increase thermal comfort. The project demonstrates how simple retrofits can deliver impressive results for both energy and comfort.