456 Green St, San Francisco, CA 94133

The 5-unit residential building at 456 Green Street in Telegraph Hill, owned by Leon Wong Co Inc, is a 3-story multi-family structure built in 1906 that has undergone several significant improvements over the past decades. Most notably, the building completed mandatory seismic retrofitting in 2017 at a cost of $42,500, bringing it into compliance with current safety standards as a Tier 3 soft-story building with a Certificate of Final Completion issued.

The property has maintained its infrastructure through various important upgrades, including a complete reroofing in 2000 ($7,400), and comprehensive gas line replacements in units 1, 2, and 3 in 2016. The building's maintenance record shows regular upkeep, with several permits issued in recent years for street space usage in 2018-2019. Historical improvements include interior renovations from 1988 (kitchen and bathroom updates) and compliance work from 1982.

While there have been routine housing inspections conducted in 2000, 2003, and 2006, the building has not had any active complaints since then. The property has experienced typical urban challenges as documented in 311 calls, primarily relating to exterior issues such as graffiti (2018, 2020), sidewalk cleaning (2021, 2016), and occasional parking concerns (2024). These external matters have generally been promptly addressed by the relevant city departments, indicating responsive management of such incidents.