1657-1659 48th Ave, San Francisco, CA 94122

The three-story multi-family residential building at 1657-1659 48th Avenue in the Outer Sunset was constructed in 2001 and is currently owned by Donald Toy and Rita J Liang. The building has experienced notable maintenance and infrastructure issues in recent years, particularly regarding its sewer system.

Most concerning are two recent incidents in late 2024 involving sewer problems: a sewage backup discharge from the side sewer vent in October 2024, and flooding on the property in November 2024, though both were subsequently resolved following PUC-Seber Ops intervention. The building underwent some significant improvements in 2017, including the installation of a 3.8kW roof-mounted solar system, though it required sewer line repairs that same year. The property has been subject to multiple parking-related incidents between 2020 and 2024, with several citations issued for illegal parking, including sidewalk parking violations.

Most recently, there was an open complaint regarding a collapsed sidewalk from June 2024, though this appears to be the most significant infrastructure issue reported. The building's earlier history includes two fire complaints in September 2006 regarding weeds and grass and an unspecified concern, both of which were resolved within a month. While the recent sewer issues and parking concerns warrant attention, the building has seen some positive developments such as the solar installation and regular maintenance responses from city agencies, though infrastructure maintenance appears to require ongoing attention.