{
  "address": "4036 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/4036/",
  "apn": "2751007B",
  "block": "2751",
  "lot": "007B",
  "eas_baseid": "345499",
  "coordinates": {
    "lat": 37.756195,
    "lng": -122.436336
  },
  "parcel": {
    "year_built": 1940,
    "units": 1,
    "stories": 1,
    "rooms": 5,
    "bathrooms": 1,
    "lot_area_sqft": 2250,
    "building_area_sqft": 1375,
    "lot_depth_ft": 90,
    "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 4036 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 382807,
    "assessed_improvement_value": 380897,
    "last_sale_date": "1988-02-01"
  },
  "historic_status": {
    "ceqa_status_code": "B",
    "ceqa_status_code_article_10_11": "B",
    "ceqa_status_label": "Unevaluated",
    "reason": "No evaluation and 45 years or older",
    "yearbuilt": "1940",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202308164509",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2023-08-16",
      "status_date": "2023-08-16",
      "estimated_cost": 5985,
      "revised_cost": 5985,
      "description": "re-roofing: remove and replace roofing material / existing roofing material (in-kind)",
      "source": "sf-building-permits"
    },
    {
      "number": "202307212716",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-07-21",
      "status_date": "2023-10-19",
      "estimated_cost": 26942,
      "revised_cost": 27000,
      "description": "revision to bpa# 2023-0627-0958: will extend the dry rot repair to the same side as the current permit. approx 175 sqft. in kind repair. may include temporary removal and re-installation of front facade decorative feature above sliding doors.",
      "source": "sf-building-permits"
    },
    {
      "number": "202306270958",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-06-27",
      "status_date": "2023-10-19",
      "estimated_cost": 8059,
      "revised_cost": 8059,
      "description": "replace 2nd fl window with same aluminum clad slider type and sized. dryrot repair around frame of window, including a small balcony & parapet wall. (no access to balcony only style of home). approx 96 sqft including the window. repair in kind. max ufactor 0.30.",
      "source": "sf-building-permits"
    },
    {
      "number": "201207164861",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-07-16",
      "status_date": "2012-07-16",
      "estimated_cost": 11600,
      "revised_cost": 11600,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9516033",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1995-09-28",
      "status_date": "1995-10-06",
      "estimated_cost": 1200,
      "description": "repair dryrot on railling on garage deck",
      "source": "sf-building-permits"
    },
    {
      "number": "9505487",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1995-04-17",
      "status_date": "1995-10-06",
      "estimated_cost": 6525,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9303914",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1993-03-11",
      "status_date": "1993-06-07",
      "estimated_cost": 20000,
      "description": "remodel existing bathroom on 2nd floor",
      "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=4036",
      "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=2751007B&$order=closed_roll_year%20DESC&$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=2751&lot=007B",
      "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=2751007B",
      "retrieved": "2026-07-28"
    }
  ]
}