{
  "address": "3772 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/3772/",
  "apn": "3604025",
  "block": "3604",
  "lot": "025",
  "eas_baseid": "362025",
  "coordinates": {
    "lat": 37.756509,
    "lng": -122.431707
  },
  "parcel": {
    "year_built": 1907,
    "units": 1,
    "stories": 4,
    "rooms": 8,
    "bathrooms": 3,
    "bedrooms": 4,
    "lot_area_sqft": 2850,
    "building_area_sqft": 2648,
    "lot_depth_ft": 14,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-1",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 3772 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1714512,
    "assessed_improvement_value": 953787,
    "last_sale_date": "2011-12-28"
  },
  "historic_status": {
    "ceqa_status_code": "C",
    "ceqa_status_code_article_10_11": "C",
    "ceqa_status_label": "Not a historical resource",
    "reason": "Historic Resource Evaluation Response",
    "yearbuilt": "1907",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "M661148",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2016-02-05",
      "status_date": "2016-02-05",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M646207",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-12-11",
      "status_date": "2015-12-11",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "M634829",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-11-03",
      "status_date": "2015-11-03",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "201509156934",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-09-15",
      "status_date": "2016-03-09",
      "estimated_cost": 3000,
      "revised_cost": 3000,
      "description": "add dormer to back roof to capture view, revision to appn. 201306058713. add 3 21\"x26\" max u. factor 0.32 typ",
      "source": "sf-building-permits"
    },
    {
      "number": "M620508",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-09-08",
      "status_date": "2015-09-08",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "M598887",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-06-30",
      "status_date": "2015-06-30",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M588027",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-05-18",
      "status_date": "2015-05-18",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201306058713",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2013-06-05",
      "status_date": "2016-03-09",
      "estimated_cost": 130000,
      "revised_cost": 130000,
      "description": "removing of (e) deck, constructing horizontal addition of 150 sqft on 3rd flr. an interior remodeling of 3rd flr including adding new master bathroom, mezzanine and dormer above.",
      "source": "sf-building-permits"
    },
    {
      "number": "201010122681",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-10-12",
      "status_date": "2011-02-14",
      "estimated_cost": 3800,
      "revised_cost": 3800,
      "description": "revision to appl #201009271677: replace stringer risers & treads, repair more than 50% of stairs.",
      "source": "sf-building-permits"
    },
    {
      "number": "201009271677",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-09-27",
      "status_date": "2011-02-14",
      "estimated_cost": 3800,
      "revised_cost": 3800,
      "description": "repair partial front entry stairs (less than 50% of the stair being replaced).",
      "source": "sf-building-permits"
    },
    {
      "number": "201003158217",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-03-15",
      "status_date": "2010-03-18",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to otain final inspection for work approved app#200712200967. all work is complete",
      "source": "sf-building-permits"
    },
    {
      "number": "M187046",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2009-12-28",
      "status_date": "2009-12-28",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "200812239069",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-12-23",
      "status_date": "2010-03-19",
      "estimated_cost": 50000,
      "revised_cost": 50000,
      "description": "to complete work & obtain final inspection of work approved under appl#200704239388.",
      "source": "sf-building-permits"
    },
    {
      "number": "200712200967",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2007-12-20",
      "status_date": "2010-03-17",
      "estimated_cost": 150,
      "revised_cost": 10000,
      "description": "revision to p/a #2007.04.23.9388 as requested by building inspector for revised underpinning detail for west wall & north wall.",
      "source": "sf-building-permits"
    },
    {
      "number": "200704239388",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2007-04-23",
      "status_date": "2010-03-18",
      "estimated_cost": 250000,
      "revised_cost": 250000,
      "description": "horizontal rear yard addition and associated renovations ground floor. guest bedroom suite to an extg single family house.",
      "source": "sf-building-permits"
    },
    {
      "number": "200404232114",
      "type": "additions alterations or repairs",
      "status": "withdrawn",
      "filed": "2004-04-23",
      "status_date": "2004-11-23",
      "estimated_cost": 75000,
      "description": "rear yard horizontal addition at first and second floors: master bedroom, bathroom, interior stair,",
      "source": "sf-building-permits"
    },
    {
      "number": "200003316060",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2000-03-31",
      "status_date": "2000-08-10",
      "revised_cost": 11000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9818992",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1998-09-09",
      "status_date": "1998-11-02",
      "estimated_cost": 5500,
      "description": "new kitchen cabinets, patch walls , new floor covering",
      "source": "sf-building-permits"
    },
    {
      "number": "9816171",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1998-08-17",
      "status_date": "1998-09-10",
      "estimated_cost": 1245,
      "description": "cap foundation at front of bldg/install light concreate base",
      "source": "sf-building-permits"
    },
    {
      "number": "9815727",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1998-08-12",
      "status_date": "1998-08-19",
      "estimated_cost": 7000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "8205141",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1982-06-24",
      "status_date": "1983-03-04",
      "estimated_cost": 1925,
      "description": "bldg use: dwg",
      "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=3772",
      "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=3604025&$order=closed_roll_year%20DESC&$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=3604&lot=025",
      "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=3604025",
      "retrieved": "2026-07-28"
    },
    {
      "id": "digitalsf-54201",
      "name": "3772 21st Street, between 1946 and 1952. San Francisco Office of Assessor-Recorder Photographs (SFP 23), San Francisco History Center, San Francisco Public Library.",
      "query": "https://digitalsf.org/record/54201",
      "label": "Assessor-Recorder Photographs (SFP 23), San Francisco Public Library",
      "retrieved": "2026-08-15"
    }
  ],
  "historical_record": [
    {
      "date": "between 1946 and 1952",
      "kind": "photograph",
      "description": "The Office of the Assessor-Recorder photographed the property for tax assessment.",
      "source": "digitalsf-54201"
    }
  ]
}