{
  "address": "3856 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/3856/",
  "apn": "3603019",
  "block": "3603",
  "lot": "019",
  "eas_baseid": "361930",
  "coordinates": {
    "lat": 37.75639,
    "lng": -122.433689
  },
  "parcel": {
    "year_built": 1905,
    "units": 1,
    "stories": 3,
    "rooms": 8,
    "bathrooms": 4,
    "bedrooms": 4,
    "lot_area_sqft": 2848,
    "building_area_sqft": 3000,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "WOO",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 3856 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 3011898,
    "assessed_improvement_value": 1896380,
    "last_sale_date": "2018-10-25"
  },
  "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": "1905",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201803083232",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-03-08",
      "status_date": "2018-05-25",
      "estimated_cost": 8000,
      "revised_cost": 8000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "201802131168",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-02-13",
      "status_date": "2018-09-04",
      "estimated_cost": 175000,
      "revised_cost": 175000,
      "description": "bathrooms (4) replace tile, replace fixtures in existing location. kitchen replace cabinets. replace countertop. replace appliances. paint exterior front back.",
      "source": "sf-building-permits"
    },
    {
      "number": "201104154147",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-04-15",
      "status_date": "2011-04-25",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "to legalize existing laundry room on basement level.",
      "source": "sf-building-permits"
    },
    {
      "number": "201104043455",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-04-04",
      "status_date": "2011-04-25",
      "estimated_cost": 1500,
      "revised_cost": 2500,
      "source": "sf-building-permits"
    },
    {
      "number": "200411088773",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2004-11-08",
      "status_date": "2005-02-11",
      "estimated_cost": 3000,
      "revised_cost": 3000,
      "description": "resurfacing (e) leafing demo at rear, water proofing, install slated tiles. finish w/sealer",
      "source": "sf-building-permits"
    },
    {
      "number": "200206199469",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2002-06-19",
      "status_date": "2002-10-10",
      "estimated_cost": 15000,
      "revised_cost": 24000,
      "description": "add spiral staircase to (e)area",
      "source": "sf-building-permits"
    },
    {
      "number": "200008299176",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-08-29",
      "status_date": "2000-12-29",
      "estimated_cost": 3800,
      "revised_cost": 3800,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200003013200",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2000-03-01",
      "status_date": "2000-12-05",
      "estimated_cost": 30000,
      "revised_cost": 75000,
      "description": "new garage & foundation, decks &reconfigure lowest level for 2 bedrms,bath &garage",
      "source": "sf-building-permits"
    },
    {
      "number": "M11348",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-01-31",
      "status_date": "2000-05-31",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "20000131643",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2000-01-31",
      "status_date": "2000-12-05",
      "revised_cost": 30000,
      "description": "remodel kitchen & baths,sheetrock,rear window,new floors",
      "source": "sf-building-permits"
    },
    {
      "number": "20000131638",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2000-01-31",
      "status_date": "2000-12-05",
      "estimated_cost": 30000,
      "revised_cost": 30000,
      "description": "voluntary seismic upgrade. add skylight make rear porch smaller @ top story remove rear bay window",
      "source": "sf-building-permits"
    },
    {
      "number": "9009275",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1990-05-14",
      "status_date": "1990-06-06",
      "estimated_cost": 3370,
      "description": "reroofing",
      "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=3856",
      "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=3603019&$order=closed_roll_year%20DESC&$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=019",
      "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=3603019",
      "retrieved": "2026-07-28"
    }
  ]
}