Know This Place

3434 21st Street

Mission · San Francisco, CA 94110

  • Built 1900
  • 2-unit apartment building
  • 2 stories
  • Zoned RH-2
  • District 8
  • Historic status: historic resource
37.7570, −122.4242 Street View appears here once a Google Maps embed key is configured.
3,415 sq ftBuilding area
2,848 sq ftLot area
13Rooms · 3 baths

Permit history

  1. Jun 2025

    Repairs to rotted front steps, repair dry rot, replace treads and risers, replace front newel post, less than 50% replacement.

    Complete Permit 202506178822 $$$ $25,000
  2. Nov 2015

    Install dryer vent to comply with nov#201575951.

    Complete Permit 201511193151 $$$ $1,000
  3. Sep 2015

    Remove existing roof and replace with in kind composition shingles and modified bituman membrane roofing system. no change to the facade, roofline, or appearance.

    Complete Permit 201509046220 $$$ $21,000
  4. Jul 2003

    Reroofing.

    Complete Permit 200307300771 $$$ $12,000
  5. Jun 1990

    Renewal of permit #8812231 for completion of work.

    Complete Permit 9012157 $$$ $7,000
  6. May 1989

    Relocate rire escape to front building.

    Cancelled Permit 8908813 $$$ $1
  7. Aug 1988

    For extension of expired permit # 08703211.

    Expired Permit 8812231 $$$ $100,000
  8. Mar 1987

    Horizontal extension, apartment added to lower floor.

    Expired Permit 8703211 $$$ $150,000
  9. Oct 1986

    Restoration of ex. single family dwelling.

    Cancelled Permit 8612380 $$$ $100,000
  10. Aug 1986

    Demolish sheetrock in 3 rooms in existing interior.

    Expired Permit 8609733 $$$ $1,000

3 nominal $1 street-space permits are 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.