645-647 Chestnut St, San Francisco, CA 94133

The two-unit multi-family residential building at 645-647 Chestnut Street in the North Beach neighborhood, owned by the Paul Lebaron Thiebaud Trust, was built in 1900 and consists of two stories plus a retail space. The property has experienced significant fire safety issues over the past two years, with multiple violations and complaints between 2022 and 2024 related to alarm systems, sprinkler systems, hazardous materials, and sleeping area requirements, though most of these conditions were generally corrected once cited, with one current violation remaining as of December 2024 regarding the alarm system and a prior violation concerning sleeping area requirements from November 2023.

The building's recent permit activity includes a substantial accessibility improvement project in 2024 with a budget of $11,225 to replace thresholds and improve doorway access in compliance with city ordinances. The property has had a series of fire alarm system activations and elevator rescue incidents throughout its history, with the most recent fire-related violations and complaints occurring in 2023-2024.

The building's recent maintenance record shows the owner is actively addressing accessibility improvements, with a significant permit filed in August 2024 for doorway modifications. The property has experienced some neighborhood issues in early 2025, with multiple reports of encampments and debris on the surrounding sidewalks, though these are external to the building itself. A series of street space permits were issued between 2009-2010, and a horizontal addition was completed in 1989, indicating the building has undergone various modifications and improvements over its long history.