647 35th Ave, San Francisco, CA 94121

The property at 647 35th Avenue in San Francisco's Outer Richmond neighborhood is a one-story duplex/multi-family residential building constructed in 1987, currently under the ownership of Richard H & Janet K Kung Trust. The building has undergone significant modifications and improvements over the years, with the most substantial recent transformation occurring between 2019-2020 when an additional unit (Unit #3) was legalized on the first floor, requiring comprehensive work including the installation of a kitchen, living space, bathroom, and two bedrooms, along with new utilities (water heater, furnace, washer/dryer).

This upgrade was followed by the installation of a new fire sprinkler system for ground floor ADU units in 2020, including a comprehensive fire safety upgrade completed in 2021 with the installation of a new fire alarm monitoring system. The building has seen regular maintenance and improvements over the years, including window replacements (12 front-facade windows in 2015), re-roofing (2015), and earlier exterior improvements such as vinyl siding installation in 1994. However, there have been recurring sewer-related issues, with multiple incidents of sewage back-ups reported between 2020 and 2024, most recently in October 2024, indicating an ongoing infrastructure challenge.

The building's parking situation has experienced several enforcement actions, with multiple reports of driveway blocking between 2020-2022, though these are external to the building's condition. A single fire alarm activation was recorded with no fire or injuries involved. The property appears to be managed with regular updates to safety systems, though the recurring sewer issues may impact resident experience.