1239-1241 Leavenworth St, San Francisco, CA 94109

The property at 1239-1241 Leavenworth Street is a two-unit, two-story multi-family residential building located in San Francisco's Nob Hill neighborhood. Built in 1907, this flats and duplex structure is currently owned by Thomas Szeto.

The building's documented permit history reveals relatively minimal major modifications over the past several decades, with the most significant being an attempted garage installation project in 1987-1988, though the initial permit from December 1987 expired before completion, requiring a follow-up permit to complete the work in October 1988. More recent building activity includes two streetspace permits issued in September 2011, though these permits had no associated costs.

The property has experienced very limited street-level issues, with only one documented 311 complaint in March 2016 regarding loose garbage, which was handled and resolved by the Department of Public Works. The overall permit and complaint history suggests the building has maintained relative stability over the years, with no significant recurring issues or safety concerns documented in the available records. The most recent activities on record are over a decade old, and the building's relatively simple permit history may indicate either minimal required improvements or potential gaps in available documentation.