183-185 Henry St, San Francisco, CA 94114

The property at 183-185 Henry Street is a two-unit, two-story multi-family residential building located in San Francisco's Duboce Triangle neighborhood. Built in 1909 and currently owned by Erik Honda, this flats and duplex building has undergone several significant improvements in recent years, most notably energy efficiency upgrades in late 2023, including the installation of a new ducted heat pump system and the attempted replacement of gas water heaters with a heat pump water heater.

The building has also seen substantial safety improvements over its history, including the installation of foundation anchor bolts in 1999 and various window upgrades in 2008. The property has experienced several maintenance and infrastructure issues over the years, with notable incidents including a sewage backup in 2014 and multiple instances of defaced parking signs between 2014 and 2024.

Recent plumbing work in 2023-2024 involved corrections to the building address to properly reflect the distribution between 183 and 185 Henry Street. The building's historical records show proper use designation as a flats and duplex property since 1982, and a variance was approved to replace and enlarge rear yard elements. Street-related issues have been documented, including parking violations on the sidewalk in 2024 and 2023, though these are external to the building itself.