105-107 Highland Ave, San Francisco, CA 94110

The property at 105-107 Highland Avenue is a 2-story, 5-unit multi-family residential building located in Bernal Heights, built in 1910 and currently owned by Matthew & Annie Iong. The building has undergone several significant plumbing infrastructure improvements in recent years, including a completed gas house-line extension in August 2024, a building sewer line replacement in 2013, and multiple gas house-line extensions in 2011 covering all five units. Historical records show window replacements were completed in 2015, involving 21 street-facing wood windows.

The building has experienced persistent plumbing issues, with multiple sewer problems documented between 2023-2024, including active complaints about sewer backups affecting access areas and adjacent properties. The property has a history of regulatory oversight, including a 2020 investigation of potential unauthorized unit conversions and periodic routine inspections revealing various violations. Notable health and safety concerns emerged in 2023, resulting in active housing inspection cases related to plumbing and sanitation conditions.

The building's fire safety compliance has been monitored over the years, with some violations noted in 2017 regarding blocked exits and storage issues, though these were subsequently abated. Recent 311 calls in early 2025 indicate ongoing concerns about garbage and debris management around the property. Planning records show the completion of window replacement work, while fire incident records reveal only false alarms with no civilian injuries reported.