Know This Place

3442–3446 21st Street

Mission · San Francisco, CA 94110

  • Built 1928
  • Two-flat
  • 2 stories
  • Zoned RH-2
  • District 8
  • Historic status: unevaluated
37.7570, −122.4244 Street View appears here once a Google Maps embed key is configured.
3,970 sq ftBuilding area
3,420 sq ftLot area
12Rooms · 2 baths

Permit history

  1. Apr 2024

    To obtain final inspection for work approved under permit application 2016-1214-4936, 2017-1012-1094, 2018-0522-9820 all work is complete.

    Complete Permit 202404160087 $$$ $1
  2. Oct 2023

    New sprinkler waterflow and supervisory system fully sprinklered building. install new control panel with built in radio, smoke detector above and pull station near panel in garage area. install wireless gateway for wireless monitor modules to tie-in waterflow and tamper switches to new panel to be.

    Complete Permit 202310259406 $$$ $10,700
  3. Jul 2023

    Revision to permit application 202007099892 to tap into 12" main (instead of 4" main) and change ug lateral from 4" di to 2" copper k, fire sprinklers for the house (nfpa 13).

    Complete Permit 202307273163 $$$ $1
  4. Jul 2020

    Fire sprinkler and underground for the house ref permit application 201612144936.

    Complete Permit 202007099892 $$$ $2,500
  5. Aug 2018

    New private roof deck (access from top unit only). new stair access to roof deck. expansion of balcony. no other work proposed.

    Issued Permit 201808217910 $$$ $26,000
  6. May 2018

    New landscape planters in rear yard. revision to app#201612144936. structural only. n/a for maher.

    Expired Permit 201805229820 $$$ $400
  7. Oct 2017

    Temporary shoring per plan. n/a ordinance #155-13.

    Expired Permit 201710121094 $$$ $15,000
  8. Dec 2016

    Exterior & interior renovation of 2 units residence. excavation of the lowest level to allow compliant headroom. adjusting location of floor above new foundation. replacement of glazing on rear facade with new windows. new roof deck. legalize 3rd unit per ord 43-14.

    Expired Permit 201612144936 $$$ $425,000
  9. Jul 1988

    Skky light added to kitchen remodel permit #8807284.

    Complete Permit 8810056 $$$ $500
  10. Jun 1988

    Remodel kitchen, add bathroom.

    Expired Permit 8807284 $$$ $50,000
  11. Jan 1982

    Additions alterations or repairs.

    Complete Permit 8200176 $$$ $3,000
  12. Jun 1981

    Additions alterations or repairs.

    Filing Permit 8105191 $$$ $1

3 nominal $1 street-space permits are omitted.

Not yet documented: the architect and builder and the early residents. Know any of it? Tell us — just describe it in plain words.