635-637 Guerrero St, San Francisco, CA 94110

The property at 635-637 Guerrero Street is a two-unit, two-story multi-family residential building located in the Mission Dolores neighborhood, constructed in 1911 and currently owned by Philip Beckerman Living Trust. The building has undergone significant recent improvements, with major upgrades completed in 2022 including the installation of solar PV systems, reroofing, and the replacement of an existing water heater with a more efficient heat pump model.

Prior to this, between 2007-2008, the building received substantial mechanical system upgrades, including the replacement of furnaces and water heaters, though there was an incident in 2008 involving plumbing issues that led to a Notice of Violation regarding defective soil stacks and waste piping between units, which was resolved by July 2008. The building's infrastructure has seen continued maintenance and upgrading efforts, with a notable electrical system upgrade in March 2022 to 200-amp service for each unit. Historical records show earlier improvements including reroofing work in 1999.

The property has experienced some localized infrastructure issues, particularly in 2008, but these were promptly addressed. The surrounding area has experienced typical urban challenges as evidenced by recent 311 calls between 2020 and 2024 regarding street cleaning, waste, and parking issues, though these are external to the building itself. The most recent planning action related to the property was an approved condo conversion application.