135 Masonic Ave, San Francisco, CA 94118

The two-unit residential building at 135 Masonic Ave in Lone Mountain, owned by the Henry C Nebeling Revocable Trust, is a two-story flats and duplex structure built in 1939. The property has experienced several significant maintenance and safety events over recent years, with the most pressing concerns relating to tree maintenance issues in 2023, including reports of tree damage, vandalism, and fallen trees for which permits remain open.

The building underwent notable fire safety concerns, with violations recorded in 2016 for alarm system maintenance that was referred to hearing, and earlier issues with sprinkler/standpipe systems and alarm systems in 2021 and 2005 respectively, though these were marked as corrected. Infrastructure maintenance is evident with historical permits showing reroofing work in 1991 and street/sidewalk work in 2012, including a sewer repair.

The property has been subject to various environmental and infrastructure challenges, particularly in 2023-2024, with multiple reports concerning tree maintenance, sidewalk defects, and graffiti, some of which remain unresolved. Recent 311 calls indicate ongoing concerns with the surrounding area, including public works services and tree issues, while historical records show the building's systems have required periodic attention to fire safety equipment. The sidewalk defect reported in July 2024 and the graffiti incidents from 2023-2024 reflect ongoing maintenance needs in the immediate vicinity, though these are primarily external to the building itself.