11–23 Mars Street
Corbett Heights · San Francisco, CA 94114
This house did not start out on Mars Street. It was moved here from Falcon Street, one of the streets erased when Market Street was cut through the neighborhood, and photographs of Mars taken about 1921 show its lot still empty.
Documented history
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1909
Construction date recorded by the assessor — predating the move to this site.
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c. 1921
The lot is still vacant in two photographs of Mars Street taken before the street improvements.
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After 1921
Building moved to Mars Street from Falcon Street, which was expunged by the Market Street extension. Its former line is now the Slope.
Permit history
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May 2026
Tempered glass guard rail added at the existing third-floor balcony — revision to permit 202502180547.
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Nov 2024
Third-floor kitchen remodelled, new half bathroom, wall removed between kitchen and living room.
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Aug 2023
Reroofing, in kind.
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Jul 2023
Voluntary seismic strengthening — plywood, clips, bolts and sill-plate connectors to the cripple wall at the crawl space.
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Mar 2023
Top-floor bathroom remodelled in kind, non-structural.
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Apr 2022
Kitchen and bathroom remodelled in kind.
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Mar 2011
Kitchen removed from an illegal first-floor dwelling unit.
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Oct 1996
Reroofing.
Not yet documented: the year the building was moved, its address on Falcon Street, and who moved it. The assessor records two storeys, while recent permits describe work on a third floor. Know any of it? Tell us — just describe it in plain words.