177 Corbett Ave, San Francisco, CA 94114

The two-unit residential building at 177 Corbett Avenue in Corona Heights, owned by the Sullivan 2001 Trust, is a two-story Victorian structure built in 1900 that has undergone several significant renovations over the past few decades. Most recently, in August 2022, a building violation was filed regarding unauthorized window replacements on the front facade, though this was subsequently addressed through an issued permit for energy-efficient Anderson double-hung windows.

The building has seen substantial improvements over the years, including electrical system upgrades with a complete rewiring of one flat in 2003, installation of underground electrical service in 2005, and several maintenance projects such as reroofing work in 1999 (expired permit) and 2002 ($13,225), kitchen renovations in 2002, and structural modifications including horizontal addition in 1989 and deck stair revisions in 1990. The property has experienced some maintenance challenges in recent years, including sidewalk defects noted in 2022 and reports of graffiti, though these were resolved through municipal channels.

Historical records show attention to tree maintenance in the vicinity, with two incidents of fallen trees reported in 2013 and 2016. The building's age and history suggest regular upkeep and modernization efforts, particularly focusing on windows and electrical systems, while also indicating some periodic maintenance issues with exterior elements like the roof and sidewalks. The most recent windows installation, now permitted and completed, appears to have brought the building into compliance with current building codes after the July 2022 violation.