821-823 Guerrero St, San Francisco, CA 94110

The two-unit residential building at 821-823 Guerrero Street, located in the Eureka Valley/Dolores Heights neighborhood, is a two-story flats and duplex structure built in 1906. The property has undergone several significant improvements over the past two decades, with the most substantial work occurring in 2005 when a voluntary foundation upgrade costing $30,000 was completed, along with electrical rewiring and various structural improvements. The building received a new roof in 2007 (cost: $7,000), and electrical upgrades were implemented in 2006 including a whole unit rewiring project.

Recent concerns include multiple instances of garbage and debris on the property, with recurring reports of human waste or urine on the street/sidewalk areas throughout 2024. There have also been several parking enforcement cases involving vehicles on the sidewalk, though not all resulted in citations. Two notable maintenance issues remain unresolved as of 2024: a dead tree reported in July 2024 and a previously fallen tree (reported June 2023).

The building's history includes three fire-related incidents, though none resulted in civilian injuries, and a 2009 complaint regarding unpermitted operations was referred to another agency. The most recent building permit activity was a street space permit issued in 2011. The property's maintenance history suggests regular upkeep of major systems, though recent sanitation and exterior maintenance issues warrant attention.