343 Walnut St, San Francisco, CA 94118

343 Walnut Street is a three-story, 6-unit multi-family residential building constructed in 1907 in Presidio Heights. The property has undergone significant improvements and updates in recent years, with particular attention to safety systems and modern amenities. Most notably, in 2022-2024, the building received a comprehensive HVAC upgrade with the installation of heat pumps and air handlers throughout, as well as a complete fire alarm system replacement.

Major interior improvements were completed in 2022 for apartments #4 and #6, including bathroom and kitchen remodeling, insulation work, and electrical rewiring. The building successfully completed its mandatory seismic retrofit in 2015 (tier 3), and earlier upgrades included window replacements (2019), roofing work (2020), and plumbing system improvements such as the installation of sub-meters and tankless water heaters (2021). The property's maintenance record reveals regular upkeep and modernization efforts, with recent plumbing and electrical work achieving completion status in 2024, including heat pump installations and related infrastructure.

Although there were a few building violations related to fire safety in 2011, all were promptly addressed by September 2011. The building has maintained an active response to various infrastructure needs, such as sidewalk repairs (2020), though some ongoing issues like sidewalk defects have been noted. A series of parking enforcement cases have been documented near the property, suggesting periodic challenges with vehicle access to the building. The most recent work completed includes comprehensive HVAC improvements and electrical system upgrades, with active and promptly addressed responses to all recent building complaints and issues.