641-643 Connecticut St, San Francisco, CA 94107

The two-unit residential building at 641-643 Connecticut Street in Potrero Hill is a two-story flats and duplex structure built in 1964, currently owned by Arthur C. and Cheryl Ann Agnos.

The building has undergone several significant improvements over its history, with the most recent being the installation of an EV charging receptacle in August 2022 and a major reroofing project completed in September 2020 that involved replacing the existing tar and gravel roofing with a new four-ply system costing nearly $19,000. More substantial structural work was performed in the late 1990s when a vertical addition was completed in 1997, followed by deck and kitchen improvements in 2000 that totaled $63,000, and in 2014, the property received a solar PV system installation consisting of 10 roof-mounted panels with a total rating of 2.15 kW. The most pressing current concern involves the building's surroundings, with reports of damaged trees near the property, including two 311 calls in August and October 2024 regarding trees that were "about to fall," with one case still pending resolution.

The property has maintained reasonable upkeep over the years, with no recorded safety violations or major structural issues since the substantial renovations of the late 1990s and early 2000s. Historical records also show an abandoned motorcycle incident near the property in 2014, but this was promptly resolved within one day. All major building permits and electrical upgrades have been properly completed and recorded, indicating good maintenance practices by the current ownership.