950 De Haro St, San Francisco, CA 94107

The two-unit residential building at 950 De Haro St in Potrero Hill, currently managed by the Nicholas A Russo 2003 Trust, is a two-story flats and duplex structure built in 1900. The property is undergoing significant recent renovations, with active permits from mid-2023 for a two-story horizontal addition and kitchen extensions in both units, followed by additional plumbing and electrical work in 2024 for laundry hookups, gas lines, and interior stairwell modifications.

Historical records show several previous improvements, including a bay window installation in 1985 and porch and front steps reconstruction in 1984, though the building underwent notable changes in late 1983 with interior staircase removal and demolition work. The property has experienced minimal maintenance issues in recent years, with only routine municipal service requests recorded through 311 calls, including parking violations in 2023 and 2021, and utility line/wire concerns in 2016.

Historical planning records indicate successful variance applications for both front setback modifications and rear horizontal additions, with specific attention to preserving the building's historic character through assessments and appropriate permits. The most recent building improvements suggest a substantial investment in modernizing the property while maintaining its original character, with work focused on enhancing both units' living spaces and updating infrastructure.