2309 California St, San Francisco, CA 94115

The property at 2309 California Street is a two-unit, two-story multi-family residential building located in Lower Pacific Heights, built in 1900 and currently owned by Paul H. Wermer and Ca Brownson.

The building has undergone substantial improvements over the past decade, including the installation of a hydronic heating system with tankless water heater (2013), complete electrical wiring upgrades (2010-2013), and the addition of solar panels (2009). Significant renovations were performed between 2009-2013, including a complete remodel, new water main installation, and bathroom updates, though some original permits from this period expired and required subsequent permits for final inspection. The property has experienced a few notable maintenance and compliance issues, including a weatherproofing complaint in 2010 regarding water intrusion and dry rot, and an incident in 2009 concerning construction debris and air quality concerns, though both were promptly addressed within days.

In recent years, there have been several infrastructure-related permits and improvements, with the most recent building permit from 2015 being marked as complete. The surrounding area has had various 311 calls primarily related to parking issues, street cleaning, and minor maintenance matters, though these are typical for urban environments and not directly related to the building's condition. The property has received permits for rear yard variances, indicating some modifications to the exterior spaces, though specific details of these changes are not outlined in the records.