1342-1346 Mason St, San Francisco, CA 94133

The three-story, 7-unit apartment building at 1342-1346 Mason Street in Nob Hill, owned by John M & Lily T Lee Revoc T, has undergone significant recent improvements since 2021, including the addition of an eighth unit (ADU) on the ground floor, completed in 2023. Major recent works include the installation of a fire sprinkler system (April 2023, cost $30,970), structural alterations to improve ceiling height and safety features (April 2023), comprehensive unit renovations (bathroom and kitchen remodels, window replacements), and substantial electrical upgrades including a new fire alarm system and replacement of the 400-amp main service.

The building has completed mandatory seismic improvements, achieving compliance with the soft-story retrofit program (Tier 3) in 2019-2020, which included concrete footings and plywood strengthening in the crawl space (2017, cost $80,500) and a soft-story retrofit (2019, cost $135,000). The property has a history of various maintenance and compliance issues, particularly in the mid-2000s when multiple violations were recorded including security, fire safety, and structural concerns, though these were promptly addressed by April 2005. There were also several enforcement actions regarding unauthorized short-term rentals between 2014 and 2021, which were subsequently abated.

Recent months have seen some noise complaints (October 2023) and crosswalk obstruction issues (December 2023), though these are not directly related to building condition. The building's infrastructure has seen significant upgrades including a complete electrical system overhaul (2022), new windows, and building system improvements, suggesting proactive maintenance by current ownership. All major building permits and violations from 2004 to present appear to have been addressed, with recent permits focusing primarily on modernization and safety improvements.