4240 Mission St, San Francisco, CA 94112

The two-story, four-unit multi-family residential building at 4240 Mission Street, owned by Robert Cavagnaro and constructed in 1959, has undergone several significant maintenance and safety improvements over the years. Most notably, in 2003-2004, the building received multiple window replacements (12 windows total) and underwent termite repairs, with a reroofing project initiated in 2003 costing $7,000. The property has experienced recurring fire safety issues, with routine safety inspections in 2000 and 2015 revealing multiple violations, including expired fire extinguishers, smoke detector deficiencies, and fire escape obstructions, though these violations were all subsequently abated.

Of particular concern, there were safety incidents recorded in 1996 involving a collapsed rear stairway and reports of hazardous conditions including loose bathroom tiles and plumbing issues. The building has experienced some maintenance challenges with its plumbing system, evidenced by multiple sewage backup incidents reported through 311 calls in 2020 and 2021. While there have been several fire alarm activations recorded, the majority were false alarms or caused by non-serious incidents such as cooking activities, with no civilian injuries reported in any fire-related incidents.

The property's maintenance history shows periodic attention to basic infrastructure, including stair repairs in 1997 and various window replacements, indicating ongoing maintenance efforts by ownership. The most recent building data from 2023-2024 includes several 311 calls related to parking enforcement and general street cleaning, though these are not directly related to building conditions. The location has undergone some neighborhood-level maintenance issues as evidenced by general cleaning requests and a graffiti incident in 2019, but these appear to be typical urban environment challenges rather than building-specific concerns.