420 Baker St, San Francisco, CA 94117

The 4-unit apartment building at 420 Baker Street, owned by Williams Family Trust, is a 2-story multi-family residential structure built in 1926 in Park North. The property has undergone significant renovations and improvements over the past two decades, with major work completed in 2011-2012 including comprehensive unit upgrades (converting bedrooms, relocating kitchens, and adding bathrooms) and infrastructure improvements such as the installation of four tankless water heaters, central heating systems, and upgrading to a 200A electrical service with 5 meters.

A notable incident occurred in 2012 when unauthorized work on water heaters led to multiple housing code violations, including issues with fire extinguishers, lighting, and wood stairs, though these were all abated by May 2012. The building has had recurring fire alarm system issues between 2018 and 2023, with most being determined to be false alarms or system malfunctions, though some required corrections were made.

Recent maintenance records indicate ongoing exterior upkeep, with multiple garbage and debris reports in 2024 being promptly resolved, showing active property management. Regular safety inspections, including three routine inspections between 1999 and 2017, have been conducted, with no active violations currently on record. The building's permit history shows consistent investment in maintaining and upgrading the property, with the most recent significant work being an interior remodel of unit 3 in 2016, including bathroom and kitchen updates and laundry installation.