37.7570, −122.4242 A locator map appears here once a Mapbox token is configured.
Know This Place

District 8 · Block 3607, Lot 017 · ZIP 94110

3434 21st Street

2-unit apartment building · Mission

  • 2 stories
  • 3,415 ft2
  • 2,848 ft2 lot area
  • 13 rooms
  • 3 bathrooms
  • Wood frame
  • Zoned RH-2
  • Historic resource
Land$194,619
Improvements$476,753
Total assessed$671,372
37.7570, −122.4242 Street View appears here once a Google Maps embed key is configured.
  1. 1900

    Built.

  2. Jun 1990
    Permit 9012157 $$$ $7,000

    Renewal of permit #8812231 for completion of work.

  3. Jul 2003
    Permit 200307300771 $$$ $12,000

    Reroofing.

  4. Sep 2015
    Permit 201509046220 $$$ $21,000

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

  5. Nov 2015
    Permit 201511193151 $$$ $1,000

    Install dryer vent to comply with nov#201575951.

  6. Jun 2025
    Permit 202506178822 $$$ $25,000

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

3 nominal $1 street-space permits and 5 expired or cancelled permits are omitted.

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