589-591 Connecticut St, San Francisco, CA 94107

The 2-unit residential building at 589-591 Connecticut Street in Potrero Hill, owned by Thamkul Revocable Trust, is undergoing significant renovation as of October 2023, with a filed permit for a major remodel valued at over $1 million. This ambitious project includes a horizontal addition at the rear, conversion of an unconditioned basement to habitable space, first-floor entry modifications for the lower unit, and comprehensive system upgrades.

The building, constructed in 1900, has seen various improvements over the years, including kitchen remodels in 2015 that involved electrical upgrades, plumbing work, and the installation of new fixtures. Historical records show earlier attention to safety concerns, such as the replacement of rotting stairs and railings in 1994. The property has experienced some maintenance challenges, particularly regarding the sidewalk, with multiple 311 calls between 2022-2024 reporting defects, including lifted and collapsed sections that remain open as of 2022.

A building complaint was filed in 2015 regarding unauthorized construction work, including concerns about basement alterations and debris, though this complaint is no longer active. The most recent permit activity suggests substantial improvements are underway, which may address some of the building's historical maintenance issues. Maryland-based developer Corbin Jones (fGBA Inc.) has been associated with the current remodeling project, which includes specific window replacements - three street-facing windows will be upgraded to Marvin aluminum wood clad, with five others receiving vinyl replacements.