441-451 Walnut St, San Francisco, CA 94118

The three-story multi-family residential building at 441-451 Walnut Street in Presidio Heights is a 6-unit flats structure built in 1903 and currently owned by Walnut Street LLC. The property has undergone several significant improvements over the years, most notably completing a mandatory $40,000 soft-story retrofit in 2017 to enhance seismic safety, for which it received its Certificate of Final Completion (CFC).

Historical records show earlier maintenance issues were addressed, including termite repairs on rear stairs in 1996, and various renovations in 1988 involving kitchen, bathroom, and fixture replacements in units 1 and 2. The building has experienced two routine housing inspections by Housing Inspection Services, one in 2004 and another in 2007, which revealed several safety concerns that were subsequently addressed. The 2004 inspection highlighted issues with fire safety equipment, emergency exits, smoke detectors, and wooden stairs, while the 2007 inspection noted concerns about fire safety equipment and smoke detectors.

Since then, there have been no recorded housing violations related to these critical systems. More recently, in 2021-2022, there were three street-related incidents near the property involving human/animal waste and medical waste, though these were external issues not directly related to the building's condition. The property appears to be current with its major safety requirements, having completed the essential soft-story retrofit and addressed past violations through documented abatement actions.