543-545 Delta St, San Francisco, CA 94134

The two-unit residential building at 543-545 Delta Street in Visitacion Valley, owned by Yvonne Sze Wan Chan, is a two-story flats and duplex structure built in 1945. The property has undergone several significant improvements over the past decades, including a comprehensive exterior renovation in 2008 that involved replacing siding and windows on all visible facades at a cost of $25,000.

Earlier maintenance work included plumbing upgrades with a gas house line extension in 2016, though some permits from the early 2000s, such as a reroofing project and an electrical service upgrade, were either expired or not completed under the original permits. Historical improvements dating back to the late 1980s included repairs to kitchens, bathrooms, windows, doors, and structural components like stairs and decking.

Recent activity at the property has primarily focused on street-level issues, with multiple reports of garbage and debris on the street and sidewalk area between September and December 2024, most of which have been resolved by city services. There have also been some concerns regarding graffiti on the public sidewalk and a few infrastructure issues including a curb defect and a transportation service request, though it's worth noting that building-specific complaints have been minimal and often related to public infrastructure rather than the property itself. The building's maintenance history suggests regular upkeep has been performed over the years, with particular attention paid to exterior surfaces and systems upgrades when necessary.