525 Natoma St, San Francisco, CA 94103

The two-story, four-unit multi-family residential building at 525 Natoma St, owned by Klaus D & Rosett Zimmermann, was constructed in 1909 and has undergone several inspections and permit modifications over the years. Most concerning is an active complaint filed in January 2025 regarding lack of hot water that has not yet been resolved. The building has a significant history of interior maintenance issues, particularly noted in a March 2004 complaint that reported problems including broken floorboards, pest infestation, exposed wiring, water damage, and malfunctioning hardware.

This triggered multiple violations regarding interior surfaces in various units (including loose floorboards, bathroom ceiling repairs, and phone jack issues) as well as several fire safety concerns, including egress obstructions and combustible storage issues. While some of these violations were marked as abated in February 2004, many remain listed as active or not fully resolved. The building's more recent maintenance record shows some positive steps, including a health and safety inspection in 2012 that resulted in deck safety modifications (installation of grids on deck railings) to meet code compliance.

Routine safety inspections were conducted in 2004 and 2008. The property has experienced infrastructure issues requiring ongoing attention, with the most recent active complaint from 2025 being particularly noteworthy for its impact on resident comfort. Outside the building itself, there have been numerous 311 calls in the surrounding area between 2021 and 2024, primarily addressing street cleaning and waste removal needs, though these external issues do not directly reflect on the building's internal conditions or management.