459-461 12th Ave, San Francisco, CA 94118

The two-unit residential building at 459-461 12th Avenue in the Inner Richmond district is a two-story flats and duplex structure built in 1950, currently owned by Hanlon J Fong Tr. The property has undergone several maintenance and improvement projects over the years, with the most recent significant update being the replacement of 10 windows in 2018 with energy-efficient vinyl frames meeting modern U-factor standards. Earlier improvements include a window installation in 1997 and a roofing project in 1999, though the latter's permit has since expired.

The building's maintenance record shows regular updates to keep pace with building standards, though no major structural modifications have been recorded. The property has experienced a range of street-level incidents between 2020-2023, with parking enforcement issues being the most frequent concern. There have been multiple reports of driveway blocking, with citations issued or attempted in several cases, particularly notable in 2023.

Other incidents have included graffiti, seasonal waste removal (Christmas tree), general street cleaning needs, and one instance involving hazardous materials (liquids) in October 2022. The building's fire safety record shows a single incident of an alarm system malfunction, which resulted in no civilian injuries. While the frequency of parking-related incidents may suggest ongoing challenges with street access, the building itself appears well-maintained with regular updates and no significant safety violations on record.