{
  "address": "3812 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/3812/",
  "apn": "3603008",
  "block": "3603",
  "lot": "008",
  "eas_baseid": "361919",
  "coordinates": {
    "lat": 37.75643,
    "lng": -122.432739
  },
  "parcel": {
    "year_built": 1906,
    "units": 1,
    "stories": 2,
    "rooms": 7,
    "bathrooms": 2,
    "bedrooms": 2,
    "lot_area_sqft": 2535,
    "building_area_sqft": 2175,
    "basement_area_sqft": 750,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 3812 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 507191,
    "assessed_improvement_value": 389815,
    "last_sale_date": "1999-09-03"
  },
  "historic_status": {
    "ceqa_status_code": "B",
    "ceqa_status_code_article_10_11": "B",
    "ceqa_status_label": "Unevaluated",
    "reason": "Historic Survey Result and 45 years or older",
    "yearbuilt": "1906",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202105100024",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2021-05-10",
      "status_date": "2022-02-04",
      "estimated_cost": 9000,
      "revised_cost": 9000,
      "description": "replace five front windows with the same size and style. front windows will be aluminum wood clad by marvin and 1 patio door. windows are street visible from street",
      "source": "sf-building-permits"
    },
    {
      "number": "201201182427",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-01-18",
      "status_date": "2012-04-03",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to 201004130198 (comply with nov 200679636) change design of replacement of 12 feet long of rear yard retaining wall at left side west property line",
      "source": "sf-building-permits"
    },
    {
      "number": "201004130198",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-04-13",
      "status_date": "2012-04-03",
      "estimated_cost": 20000,
      "revised_cost": 20000,
      "description": "to comply with nov 200678829. remove (e) retaining wall, replaced with (n) rinforced concrete retaining wall, approx 9 ft long & 10 ft high. wall is in rear yard, on west pl.",
      "source": "sf-building-permits"
    },
    {
      "number": "200311069617",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2003-11-06",
      "status_date": "2004-01-14",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew for final. 20001115125, 200005230738s",
      "source": "sf-building-permits"
    },
    {
      "number": "200311069622",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2003-11-06",
      "status_date": "2004-01-14",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew 200201318250s, 200201318202, 200005230734s",
      "source": "sf-building-permits"
    },
    {
      "number": "200311069626",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2003-11-06",
      "status_date": "2004-01-14",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew application 9925488, 200006021675, 200006193035",
      "source": "sf-building-permits"
    },
    {
      "number": "200201318205",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2002-01-31",
      "status_date": "2002-05-31",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew 2000115725 for final inspection",
      "source": "sf-building-permits"
    },
    {
      "number": "200201318202",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-01-31",
      "status_date": "2002-04-10",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to renew app#2000/06/19/3035,2000/06/02/1675,9925488 & 2000/05/23/0734s for final inspection.",
      "source": "sf-building-permits"
    },
    {
      "number": "200201287888",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-01-28",
      "status_date": "2002-04-10",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revisison to 200005230738:2 levels new rear decks & steps, remove spiral stair from original permit",
      "source": "sf-building-permits"
    },
    {
      "number": "200201287822",
      "type": "otc alterations permit",
      "status": "cancelled",
      "filed": "2002-01-28",
      "status_date": "2024-11-01",
      "description": "revision to permit app 2000/05/23/0738-two levels new rear decks & steps, remove spiral stair from o",
      "source": "sf-building-permits"
    },
    {
      "number": "200011155725",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-11-15",
      "status_date": "2001-03-15",
      "estimated_cost": 1500,
      "revised_cost": 1500,
      "description": "revision to e permit #200005230734",
      "source": "sf-building-permits"
    },
    {
      "number": "200006193035",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-06-19",
      "status_date": "2000-10-19",
      "estimated_cost": 1500,
      "revised_cost": 1500,
      "description": "revision to pa #9925488",
      "source": "sf-building-permits"
    },
    {
      "number": "200006021675",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-06-02",
      "status_date": "2000-12-02",
      "estimated_cost": 8000,
      "revised_cost": 8000,
      "description": "remove (e) asbestos shingles at facade, refinish (e) upper horiz. siding (n) cedar shingles at lower",
      "source": "sf-building-permits"
    },
    {
      "number": "200005230738",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2000-05-23",
      "status_date": "2002-05-08",
      "estimated_cost": 11000,
      "revised_cost": 30000,
      "description": "horizontal addition-(n) rear deck and stair",
      "source": "sf-building-permits"
    },
    {
      "number": "200005230734",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2000-05-23",
      "status_date": "2001-07-13",
      "estimated_cost": 35000,
      "revised_cost": 35000,
      "description": "site permit: convert (e) basement to living space, including (n) bathroom, study, guestroom,",
      "source": "sf-building-permits"
    },
    {
      "number": "9925488",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1999-12-02",
      "status_date": "2000-12-02",
      "estimated_cost": 35000,
      "description": "remodel (e) kitchen, install (n) cabnets, appliances",
      "source": "sf-building-permits"
    }
  ],
  "sources": [
    {
      "id": "sf-eas-addresses",
      "name": "SF Enterprise Addressing System via DataSF",
      "query": "https://data.sfgov.org/resource/3mea-di5p.json?street_name=21ST&street_type=ST&address_number=3812",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-assessor-roll",
      "name": "SF Office of the Assessor-Recorder via DataSF (2025 secured roll)",
      "query": "https://data.sfgov.org/resource/wv5m-vpq2.json?parcel_number=3603008&$order=closed_roll_year%20DESC&$limit=1",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-building-permits",
      "name": "SF Dept. of Building Inspection via DataSF",
      "query": "https://data.sfgov.org/resource/i98e-djp9.json?block=3603&lot=008",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-planning",
      "name": "SF Planning Department — Historic Resource Status by Parcel via DataSF",
      "query": "https://data.sfgov.org/resource/3tsw-4idn.json?apn=3603008",
      "retrieved": "2026-07-28"
    }
  ]
}