747-749 11th Ave, San Francisco, CA 94118

The two-unit residential building at 747-749 11th Avenue in the Inner Richmond district is a two-story flats and duplex structure built in 1914, currently owned by Douglas Lee. The building has undergone several significant maintenance operations over the past decades, with the most substantial work occurring in 2018 when multiple furnace replacements were carried out, including one expired permit and three completed permits between February and November. A notable resident complaint regarding an extended three-week heating outage was filed in January 2018, though this case is currently listed as not active.

The building's exterior has received attention over the years, with stucco replacement completed in 1986 and a reroofing project initiated but subsequently expired in 1997. The property's vicinity has experienced various urban maintenance issues, particularly in recent years. There are current concerns regarding tree root damage to the sidewalk, with two open cases from September and July 2021.

The area has seen multiple pavement defect reports between 2019 and 2020, with the most recent documented cases in August and September 2020. The building's immediate street environment has experienced periodic issues with parking enforcement, sidewalk cleanliness, and other urban maintenance matters, as evidenced by multiple 311 calls between 2019 and 2025, though most of these cases have been resolved or closed. While the building has received regular maintenance attention, particularly regarding heating systems in 2018, the history of the roof permit from 1997 and the more recent sidewalk and pavement concerns suggest ongoing infrastructure monitoring may be necessary. The significant age of the building (109 years) and its multi-family residential classification suggest various historical modifications may have been required to maintain building systems and comply with evolving housing standards.