539 Sunnydale Ave, San Francisco, CA 94134

The two-unit multi-family residential building at 539 Sunnydale Ave in Visitacion Valley, owned by Olivia Lin, is a two-story structure built in 1950 that has undergone several significant maintenance and compliance activities over the years. Most notably, the building has received recent attention to its roofing systems, with major projects completed in 2023 ($9,000) and 2020 ($9,500), indicating regular maintenance of this critical building component.

In 2013-2014, the property faced a code compliance issue when a partition was constructed in the two-car garage without proper permits or fire-rated materials, which resulted in violation notices that were resolved by January 2014 through the removal of the unauthorized partition and restoration to its legal use. Earlier modifications to the building were completed in 1999, adding ground floor bedroom, exercise room, and bathroom facilities.

The property's external infrastructure has required some attention, with an open tree maintenance request from July 2023 regarding backfilling of a tree basin, and a resolved sidewalk defect issue from November 2019 involving damaged sidewalk surrounding a utility vault. Historical parking-related incidents include two cases of abandoned vehicles and one report of driveway blockage between 2008 and 2018, all of which were addressed by city authorities. The building's permit and violation history suggests regular maintenance and prompt attention to compliance issues, with no ongoing violations or significant safety concerns currently on record.