348 Duncan St, San Francisco, CA 94131
The 7-unit, 2-story apartment building at 348 Duncan Street in Noe Valley, owned by Noe Valley Investors I LLC, was constructed in 1938 and has undergone significant renovations over the past decade. Most recent improvements include Unit #1 renovations in 2018 featuring an interior remodel, bedroom door relocation, and washer/dryer installation, with similar updates also completed in other units. Substantial building-wide enhancements occurred in 2013 including window replacements on both Duncan and Sanchez facades, facade improvements, and the installation of a 400-amp electrical service upgrade.
The building has experienced several construction-related complaints over the years, particularly in 2012-2013, with issues reported including falling debris, unsafe working conditions, and concerns about illegal construction affecting tenant safety. These complaints were investigated and marked as not active. Recent maintenance issues have primarily involved external matters, including multiple reports of graffiti in 2024, a water leak in late 2024, and various sign repairs.
There were also some concerns about tree damage to the property in February 2024. The building has maintained an active record of unit improvements, with recent permits showing continued modernization efforts, including kitchen and bathroom remodels, electrical upgrades, and plumbing improvements. The property has undergone periodic routine inspections, with the most recent building-wide assessments appearing to focus on exterior maintenance and common area upkeep. A notable recent development is a proposed lot split project that was reviewed for the property lines between 348 Duncan Street and 1423 Sanchez Street.
348 Duncan St Report Contents
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Building Characteristics
Total units | 7 |
---|---|
Year built | 1938 |
Total area | 4100 sq ft |
Floors | 2 |
Tax Abatements | None |
Building Class | A5 - Apartment 5 to 14 Units |

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Key Building Statistics
Included Addresses
- 348 Duncan St, San Francisco CA 94131
- 1431 Sanchez St, San Francisco CA 94131
- 1425 Sanchez St, San Francisco CA 94131
- 1441 Sanchez St, San Francisco CA 94131
- 1423 Sanchez St, San Francisco CA 94131
- 1435 Sanchez St, San Francisco CA 94131
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