2976–2978 21st Street
Mission · San Francisco, CA 94110
37.7576, −122.4140
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3,100 sq ftBuilding area
2,748 sq ftLot area
11Rooms · 2 baths
Permit history
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Mar 2026
Reroofing no hot works.
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Mar 2017
In-kind replacement of half composite shingle roof.
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Jul 1990
Reroofing.
2 nominal $1 street-space permits are omitted.
Assessed value · 2025 roll
Land $43,003
Improvements $129,081
Total assessed $172,084
At a glance
ConstructionWood frame
ParcelBlock 3612, Lot 023
Street numbers2976, 2978
Historic statusCEQA A — historic resource
Not yet documented: the architect and builder, the early residents and the date of the last recorded sale. Know any of it? Tell us — just describe it in plain words.