223-225 Mississippi St, San Francisco, CA 94107

The two-unit residential building at 223-225 Mississippi Street in Potrero Hill is a two-story flats and duplex structure built in 1900, currently owned by Michael A. Pfeffer. The building has undergone several significant maintenance updates over the years, including three roofing projects (1998, 1992, and a recent condensing unit installation in 2018), though there were also issues with plumbing that required attention, including a notable rerouting of a problematic 3-inch drain pipe in 2014.

The property has experienced multiple concerning events regarding unauthorized work, including complaints in 2000 and 2015 about construction being done without proper permits, though these cases are now marked as not active. The building's maintenance history shows a mix of routine upkeep and some more serious issues, particularly regarding its plumbing systems. A significant complaint was filed in 2014 by tenants regarding plumbing code compliance issues, which was subsequently addressed within days.

Fire safety records indicate multiple system activations and service calls between 2008 and 2023, including incidents involving a gas leak, unauthorized burning, and cooking-related fire, though all were resolved without civilian injuries. Recent activity around the property (2024-2025) has primarily consisted of exterior maintenance concerns, with multiple reports of garbage and debris issues, though these appear to be more related to street conditions than building maintenance. The most recent building-related permit activity was the 2018 replacement of the rooftop condensing unit, suggesting that while the building is being maintained, there have been relatively few major structural or systems upgrades in recent years beyond routine maintenance.