644 25th Ave, San Francisco, CA 94121

The two-unit residential building at 644 25th Avenue in the Central Richmond neighborhood, owned by Cheng Wendy and Kuykendall Ja, was constructed in 1988 following the demolition of a previous structure in July 1986. The property has undergone several significant improvements in recent years, with the most substantial work occurring in 2022-2023, including a $50,000 interior remodel of the second-floor flat that reconfigured the kitchen and two bathrooms while adding a half bath and laundry closet. This renovation was followed by mechanical updates in April 2023, including furnace replacement, duct repair, and water heater code compliance, costing $10,000.

The building received a new roof in 2019, completed at a cost of $10,800. The property has a history of maintenance issues, with a notable cluster of violations recorded in 2002 regarding damaged ceilings, though these were promptly abated within one month. A deck-related complaint was filed in 2002 regarding dry rot and safety concerns, though it is unclear from the records whether this was fully addressed. More recent maintenance history appears positive, with no active building violations or complaints in the past 15 years.

The building's plumbing and electrical systems have also received attention, with recent permits showing substantial work in bathrooms and kitchen facilities. External maintenance issues as documented through 311 calls have primarily involved routine urban challenges such as graffiti, sewage backup, and street defects, though these are not unique to this property and suggest typical neighborhood conditions. The building's recent permits and improvements indicate active property management, with substantial investment in both infrastructure and living space modernization. The most recent major works have focused on both living space improvements and critical systems maintenance, suggesting ongoing attention to both comfort and safety aspects of the building's operation.