1459-1461 12th Ave, San Francisco, CA 94122

The two-unit residential building at 1459-1461 12th Avenue in San Francisco's Inner Sunset neighborhood is a two-story flats and duplex structure built in 1947, currently owned by the Marguerite Lingvai 2010 Rev Trust. The property has undergone several significant maintenance and improvement projects over the past few decades, including a 2009 reroofing project costing $7,000, a deck replacement in 2000 valued at $5,000, vinyl siding installation in 1992, and a horizontal extension with rear deck construction in 1986.

More recently, the building experienced multiple sewer-related issues in early 2020, with documented incidents of flood and sewage backup affecting the property, resulting in interior damage and requiring multiple service visits from the Public Utilities Commission Sewer Operations team. The property has had several parking-related incidents in the vicinity, with three documented cases of driveway blocking between 2024 and 2022, though enforcement officers were unable to locate the offending vehicles in two of those instances.

There was also one instance of sidewalk parking in July 2024 that was resolved with an officer's warning. Outside of these issues, the building's recent history shows no significant safety concerns or major infrastructure problems, though the cluster of sewer-related incidents in early 2020 represents the building's most substantial maintenance challenge in recent years. The building's documented improvements and repairs suggest regular maintenance, with the most recent major building work occurring in 2009.