3347-3349 20th St, San Francisco, CA 94110

The property at 3347-3349 20th Street in San Francisco's Inner Mission neighborhood is a two-story, four-unit multi-family residential building constructed in 1900, currently owned by Mahfoud Maen. The building has undergone several significant renovations in recent years, with major improvements including a $34,000 kitchen and bathroom renovation in late 2019, and more substantial bathroom and vent work in 2015 costing $25,000. Most notably, in February 2022, the property underwent critical infrastructure work with the replacement of the main drain line and house trap, demonstrating attention to essential building systems maintenance.

The building has a history of routine inspections and some compliance issues that have been resolved, including a December 2015 violation regarding a wooden fixed utility ladder and non-compliance with smoke detector and carbon monoxide alarm requirements, which were abated by February 2016. Recent maintenance and compliance history shows regular upkeep, though there have been some recurring external maintenance issues indicated by the large number of 311 calls (over 15 in late 2024) primarily related to garbage, debris, and graffiti problems in the immediate vicinity of the building. There have been no reported fire incidents with civilian injuries, though there were several fire alarm activations recorded, typically for non-fire-related reasons.

The building has undergone various plumbing and electrical updates corresponding to the renovation work, including the installation of a new sub-panel and associated electrical work for the kitchen renovation in 2020, though this permit has expired. Historical complaints from 1996 through 2014 indicate various maintenance issues, including problems with gas appliance vents and dryer vents, but these were all marked as resolved. The property's maintenance record suggests active management with regular updates to both common areas and individual units, particularly focusing on kitchen and bathroom improvements.