424 20th Ave, San Francisco, CA 94121

The 424 20th Avenue property is a two-story, six-unit multi-family residential building located in the Central Richmond neighborhood, built in 1972 and currently owned by Noi Property LLC. The building's most significant recent activity has been a comprehensive fire safety upgrade completed in 2023, which included the installation of new fire alarm equipment, smoke detectors, manual pull stations, horn strobes, and low-frequency horns in residential sleeping areas, with a total cost of approximately $25,800.

This upgrade was necessary to ensure compliance with San Francisco Fire Code requirements and addressed previous deficiencies in the building's fire alarm system that had generated violations in 2002. The building has a documented history of routine inspections by Housing Inspection Services in 2002, 2010, and 2014, all of which were marked as "Not Active." The property underwent reroofing work in 2014 (cost: $12,000) and 1993, showing attention to maintaining the building's infrastructure. While there have been numerous parking enforcement issues reported on the property in recent years, including multiple cases of driveway blocking between 2020 and 2024, these incidents relate to street management rather than building conditions.

A scooter without a license plate was reported as a blocked sidewalk issue in July 2024, which remains open. The most recent fire-related incident was a complaint about alarm systems filed in February 2024, which was resolved in March 2024 with the condition corrected. The building's maintenance record shows regular attention to fire safety systems, with the 2023 upgrades representing the most significant investment in safety infrastructure in recent years.