709 21st Ave, San Francisco, CA 94121

The two-unit residential building at 709 21st Avenue in the Central Richmond neighborhood is a two-story flats and duplex structure built in 1923 and currently owned by the Benz Family Revocable Trust. The property has undergone several significant improvements and maintenance work over recent years, with the most recent major update being a sewer line repair/replacement completed in December 2024.

Other notable recent improvements include the installation of a tankless water heater in June 2020, a new garage door installation in May 2018 (followed by related stair repairs), and a complete re-roofing of the building in December 2017 which cost $17,000. The building's maintenance history shows attention to structural and safety improvements, though there was one building complaint filed in May 2018 regarding work being conducted without proper permits, which is currently listed as not active.

The property has experienced recurring issues with parking violations in the area, with seven parking enforcement calls recorded between 2020 and 2024, including multiple instances of driveway blocking. Additionally, there have been several 311 calls related to street cleaning and sidewalk maintenance, including reports of loose garbage and medical waste in 2021. The building's historical permit records from the 1990s show previous roofing work was done in 1990 and 1995, though those permits have since expired.