4377-4379 17th St, San Francisco, CA 94114

The property at 4377-4379 17th Street is a 2-unit multi-family residential building constructed in 1908 in the Corona Heights neighborhood, currently owned by Edward Bradford Williston. The building underwent significant renovations in 2008-2009, including major structural work such as capping the front foundation, replacing the rear foundation, lowering the basement floor for legal ceiling height, and comprehensive unit remodeling including bathroom and kitchen renovations in both units. The 2007-2008 period marked a critical time for this property, as it faced serious building violations related to an unauthorized basement unit that prompted multiple inspections and citations.

These violations noted various safety concerns including inadequate fire resistance materials, unapproved electrical wiring, plumbing issues, ventilation problems, and inadequate emergency exits. The unauthorized basement unit was ultimately removed in 2007 under permit #200708089186. Following the 2008-2009 renovations, which included complete electrical rewiring, new gas furnaces, and various plumbing upgrades, the building's systems received substantial modernization.

Recent activity at the property has been primarily related to parking enforcement issues, with multiple citations issued between 2024 and 2025 for driveway blockages. There is currently an open issue regarding a damaged tree reported in September 2024. The building's violation history shows resolution of all major safety concerns as of October 2008, with no subsequent building violations recorded. The comprehensive nature of the 2008-2009 renovations, addressing both structural and systems improvements, suggests significant investment in the building's long-term habitability and safety.