659-661 39th Ave, San Francisco, CA 94121

The property at 659-661 39th Avenue is a two-unit, two-story multi-family residential building located in San Francisco's Outer Richmond neighborhood. Built in 1924 and classified as a Flats & Duplex, the building is currently owned by Yu Carey. The building has experienced several notable events throughout its history, with some recurring issues in recent years.

Most concerning is a pattern of sewage-related problems, with two documented sewage back-ups in 2024 and 2021, both involving 4-inch vents. The property has also experienced multiple parking-related incidents recently, including citations for sidewalk parking in June 2024, a driveway blocking case in September 2019, and another sidewalk parking incident in April 2021. Historical records show some attempted improvements to the building's structure, including a cancelled permit in 2004 for a horizontal extension to the second floor and work completed in 1990 for vertical and horizontal additions.

The 1989-1991 period shows attention to safety features, with the installation of fire escape token heads and work related to a retaining wall. Additionally, the property has had two documented animal control service requests in 2018, though these were resolved without incident. The building's permit and service request history suggests ongoing challenges with plumbing systems and parking enforcement in the immediate vicinity, while also indicating past efforts at building improvements and safety upgrades.