4147-4149 23rd St, San Francisco, CA 94114

The property at 4147-4149 23rd Street is a two-story, multi-family residential building located in Noe Valley, containing three units and constructed in 1913. The building has undergone several significant renovations and improvements over the past decades, with the most recent major work occurring in 2019-2020, including a $30,000 repair of the southeast corner structure with new fire-rated wall and foundation upgrades, and an $85,000 replacement of rear-facing siding and windows.

The building's electrical infrastructure has been systematically updated, with major work completed between 2012-2020 including rewiring, furnace installations, and common area improvements. Plumbing updates were performed in 2015, including installation of a new house trap and piping. The property has experienced recurring issues with illegal parking and sidewalk obstruction, particularly in 2023-2024, with multiple citations issued and several cases remaining unresolved.

There are two notable infrastructure concerns: a collapsed sidewalk reported in 2022 that remains open as of 2023, and a damaged tree that was restaked in early 2023. The building's history includes a significant 1985 legalization of its three-unit configuration, and various maintenance and improvement works over the years, including deck replacement, window upgrades, and kitchen/bathroom renovations. The property management has generally maintained compliance with building codes and regulations, as evidenced by the successful completion of multiple permits and prompt resolution of most maintenance issues.