949-951 Duncan St, San Francisco, CA 94131

The two-unit residential building at 949-951 Duncan Street in Diamond Heights, owned by Wah Leung & Siu Ping Lew 20, has experienced several notable maintenance and safety issues since its construction in 1969. Most concerning are the recent sleeping area requirement violations issued in November 2023, affecting both 940 and 950 Duncan Street addresses, which remain open as of January 2024.

The building has a documented history of alarm system problems, with violations and false alarms occurring between 2017 and 2023, though a November 2023 incident resulted in an issued violation. The property underwent reroofing work in 2019 costing $13,940, and had other maintenance performed in 2004 including deck repairs and additional work, with earlier roofing work recorded in 1993.

Recent activity in the vicinity has been primarily focused on park services and infrastructure maintenance, with multiple 311 calls in late 2024 regarding various issues including pavement defects, garbage, and recreation equipment concerns, most of which have been resolved. The building's fire incident history shows several alarm-related events, though none resulted in civilian injuries or actual fires. Current violations and open cases related to the property primarily involve requirements for permits and sleeping area compliance, indicating potential regulatory compliance issues that may affect resident safety and comfort.