618 Spruce St, San Francisco, CA 94118

The two-unit residential building at 618 Spruce Street, owned by Zheng Jian Xin Du Bing, was constructed in 1989 following the demolition of a single-family dwelling in 1987. The property has undergone several significant improvements in recent years, most notably in 2023 when Unit 2 received substantial upgrades including a kitchen remodel (costing $36,123) and the installation of new fiberglass windows on the front facade ($12,000).

These improvements followed a previous complaint from 2019 regarding unauthorized window installations, which led to proper legalization procedures to replace vinyl windows with approved fiberglass windows. The building has seen consistent maintenance attention, including the replacement of cement board siding on the south side in 2019 ($20,000), and a plumbing violation related to fresh air inlet issues that was promptly resolved in 2019. Recent infrastructure concerns have been documented, with two sewer-related incidents reported in 2024, including flooding on the property and a sewage backup from the side sewer vent.

The property has experienced recurring issues with unauthorized parking, with multiple citations issued between 2022 and 2024 for driveway blocking, though these are not directly related to building condition or safety. A longstanding housing inspection dating back to 1994 regarding a possible illegal unit remains active in the records, representing the building's most persistent compliance issue. The building's history shows substantial ongoing investment in maintenance and improvements, with particular attention paid to updating windows and maintaining exterior elements, though some historical permits from the construction phase in 1987 are listed as expired.