1648-1650 Leavenworth St, San Francisco, CA 94109

The two-unit residential building at 1648-1650 Leavenworth Street in San Francisco's Nob Hill neighborhood is a two-story flats and duplex structure built in 1909, currently owned by the Ho Family Revocable Trust. The building's documented improvements include an electrical upgrade in 2006 involving the installation of new lighting, circuits, and panels in the ground floor hallway, and the installation of twenty-seven aluminum windows in 1985.

A street space permit was issued in 2005, though the specific nature and cost of this work are not indicated in the records. The property has experienced several notable incidents, including three fire-related events: a contained cooking fire, a water-related issue, and a malfunctioning carbon monoxide detector activation, none of which resulted in civilian injuries.

The building's surroundings have been the subject of multiple municipal service calls, primarily related to parking enforcement issues between 2018-2020, including multiple citations for illegal parking and one incident involving a blocked sidewalk by expired street space signs. Street cleaning-related complaints were made in late 2020, though two hazardous materials investigations (one for glass and one for loose garbage) resulted in no findings. The most recent service call was for an abandoned vehicle report in November 2024, which was resolved when the vehicle was no longer at the location upon inspection.