3716–3720 20th Street
Mission · San Francisco, CA 94110
Permit history
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Oct 2025
Interior renovation. no veritcal or horizontal addition. preserving the front facade. replace vinyl windows on the front facade with wood windows. changes to fenestrations on other facades, not readily visible from public right of way. approx 12" partial expansion of ground floor garage into.
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Jan 2024
Reroofing (rear lower roof).
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Oct 2023
Reroofing.
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Apr 2021
No rough opening changrd u-factor for glazing shall not exceed0.30. new flooring & painting in-kind. replace 1 window and 1 door @ rear. kitchen remodel in-kind, painting, dry wall patch, fix dry rot siding 4 sq ft. no street facing. no structural work.
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Jan 2018
Small bath - plaster and lathe removed., new: bathtub, vanity, touilet remaining, new plumb connections, new sheetrock & ceramic tile around bathtub, paint.
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Apr 2013
Revision to app#201108041716.change from bedroom to a den.
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Jul 2012
Revision to appl #2011.08.04.1716 - revise moment frame location, new foundation per plan.
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Aug 2011
This project consists of interior alterations to an existing 4 story, 2 unit building. work also includes a new larger garage door. interior alterations include general improvements, a new interior stair connecting 1st fl to 2nd fl. new closets, & a bathroom remodel.
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Jun 1999
Construct stairs from basement to second level.
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Oct 1996
Reroofing.
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May 1992
For final inspection only 9015006.
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Jul 1990
Permit to dismantle previous #8716023 not granted.
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Nov 1987
Addition of new apartment unit within the garage level.
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Jan 1985
Construct walls, plumbing, electrical.
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Aug 1984
Pour concrete slab in basement area approx. 16'x10'.
1 nominal $1 street-space permit is omitted.
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.