743 6th Ave, San Francisco, CA 94118

743 6th Avenue is a two-unit multi-family residential building located in San Francisco's Inner Richmond neighborhood, owned by Leon and Denise Woo. The two-story structure was built in 1989, following the demolition of a previous residential building in 1986. The property has undergone several significant modifications and improvements over the years, including a reroofing project in 2006 costing $6,500, and electrical upgrades in 2003 that involved installing lights, switches, receptacles, and rewiring the basement.

A major compliance issue arose in 2001 when an illegal two-room apartment with a bathroom and kitchen was discovered in the ground floor rear garage area, triggering multiple fire safety violations related to the building's sprinkler system, fire proof construction, and occupancy requirements. These violations were addressed by 2003, along with other infractions including improper combustible storage and fire extinguisher maintenance. Recent history shows the building has experienced recurring maintenance issues, particularly regarding street cleanliness, with multiple 311 calls between 2020 and 2025 concerning garbage, debris, and abandoned furniture outside the property.

While the building has experienced two fire-related incidents (one intentional and one detector activation with no fire), these occurred without civilian injuries. The property has undergone regular housing inspections, with the most recent routine inspection occurring in 2009, and has maintained compliance with building codes since resolving the 2001 violations. The building's most recent permits and violations show no active issues as of the current date, suggesting improved maintenance and compliance in recent years.