4448-4450 18th St, San Francisco, CA 94114

The three-story mixed-use building at 4448-4450 18th Street, owned by D18 LLC, was constructed in 1906 and contains 7 residential units plus ground floor commercial space. The property has undergone several significant renovations and improvements over the past decade, including mandatory ADA compliance upgrades in 2018-2019, replacement of second and third-floor bay windows in 2020, and the installation of a storage mezzanine in the ground floor commercial space in 2014.

Electrical and plumbing systems have been updated accordingly during these improvements, with comprehensive kitchen wiring remodels completed in 2005 and various infrastructure upgrades noted in subsequent years. The building has a history of addressing safety and accessibility concerns, with work completed to meet ADA requirements and resolve a 2011 routine inspection's findings regarding stairs and fire safety issues. Notably, the property has achieved compliance with the City's soft-story seismic safety requirements as a Tier 4 building.

While there were several building violations related to fire safety and structural issues noted between 2001-2011, all were resolved, with the most recent structural termite report in 2015 showing minimal (less than 50%) issues. The building's recent history shows regular maintenance and upgrading of systems, with no active building violations or complaints on file since 2011. The surrounding area has experienced typical urban challenges as evidenced by recent 311 calls in 2023-2024, primarily related to street maintenance and debris removal, though these are external to the building's operations.