471 Linden St, San Francisco, CA 94102

The two-unit residential building at 471 Linden Street in Hayes Valley, owned by Patricia Nguyen and Petersen, is a two-story flats and duplex structure dating back to 1912. The building's maintenance history includes a reroofing project initiated in 1996, the installation of two 40-gallon water heaters in 2012, and electrical upgrades to the basement wiring and stairway lighting completed in 2007.

While these improvements suggest ongoing maintenance, the property has experienced significant environmental challenges in recent years. Between 2023 and 2025, there have been multiple incidents requiring street cleaning services, including reports of human waste, medical waste (needles), garbage debris, and a sidewalk defect involving a lifted surface.

The area has also faced parking-related issues, with multiple reports of illegal parking, including blocked driveways and an abandoned vehicle, though these cases were generally resolved without finding the offending vehicles. An open case from October 2024 regarding an overgrown tree near communication lines indicates an ongoing maintenance concern. The clustering of sidewalk cleaning requests in 2023 suggests particular attention to the immediate surroundings has been necessary, though all reported cases have been marked as resolved.