{
  "address": "4238–4240 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/4238/",
  "apn": "2749024A",
  "block": "2749",
  "lot": "024A",
  "eas_baseid": "345408",
  "coordinates": {
    "lat": 37.755642,
    "lng": -122.438425
  },
  "address_range": "4238–4240",
  "street_numbers_on_parcel": [
    "4238",
    "4240"
  ],
  "parcel": {
    "year_built": 1955,
    "units": 2,
    "stories": 2,
    "rooms": 13,
    "bathrooms": 3,
    "lot_area_sqft": 3032,
    "building_area_sqft": 3585,
    "basement_area_sqft": 265,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "4240 4238 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2375936,
    "assessed_improvement_value": 974186,
    "last_sale_date": "2021-06-25"
  },
  "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": "1955",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202305127693",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2023-05-12",
      "status_date": "2023-05-16",
      "estimated_cost": 23000,
      "revised_cost": 45000,
      "description": "demo extg partition wall between kitchen and dining room, create opening for new window on the eastern wall, match exterior trim to existing.",
      "source": "sf-building-permits"
    },
    {
      "number": "202104208896",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2021-04-20",
      "status_date": "2021-04-27",
      "estimated_cost": 20000,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under permit application 200505253430. all work is completed.",
      "source": "sf-building-permits"
    },
    {
      "number": "202003046092",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2020-03-04",
      "status_date": "2020-03-04",
      "estimated_cost": 11495,
      "revised_cost": 11495,
      "description": "reroofing.",
      "source": "sf-building-permits"
    },
    {
      "number": "201806010782",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-06-01",
      "status_date": "2019-01-30",
      "estimated_cost": 8000,
      "revised_cost": 8000,
      "description": "remove and replace damaged dry rot framing to exterior deck, less than 50%; at side of house.",
      "source": "sf-building-permits"
    },
    {
      "number": "201510018520",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-10-01",
      "status_date": "2015-10-01",
      "estimated_cost": 600,
      "revised_cost": 600,
      "description": "replacing existing wood burning fireplace with new gas fireplace at the same location, no new wall and no existing wall relocation.",
      "source": "sf-building-permits"
    },
    {
      "number": "201403049797",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-03-04",
      "status_date": "2014-04-08",
      "estimated_cost": 17000,
      "revised_cost": 17000,
      "description": "replace 10 windows and 1 patio door, like for like, windows not visible from street",
      "source": "sf-building-permits"
    },
    {
      "number": "M346248",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-09-05",
      "status_date": "2012-09-05",
      "revised_cost": 0,
      "description": "streetspace",
      "source": "sf-building-permits"
    },
    {
      "number": "201112291441",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-12-29",
      "status_date": "2012-02-23",
      "estimated_cost": 15100,
      "revised_cost": 15100,
      "description": "window replacement of 6 windows (marvin wood-clad) @ front",
      "source": "sf-building-permits"
    },
    {
      "number": "201110136682",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-10-13",
      "status_date": "2011-12-21",
      "estimated_cost": 1660,
      "revised_cost": 1660,
      "description": "replacing one window same size and location, not visible from street, max u factor .40",
      "source": "sf-building-permits"
    },
    {
      "number": "201104113819",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-04-11",
      "status_date": "2011-05-16",
      "estimated_cost": 1920,
      "revised_cost": 1920,
      "description": "replace 1 window not visible from street, like for like with paintable wood composite (fibrex) u factor less than .40",
      "source": "sf-building-permits"
    },
    {
      "number": "M67404",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2007-05-07",
      "status_date": "2007-05-07",
      "revised_cost": 0,
      "description": "street space permit only.",
      "source": "sf-building-permits"
    },
    {
      "number": "M51384",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2006-12-18",
      "status_date": "2006-12-18",
      "revised_cost": 0,
      "description": "street space permit only.",
      "source": "sf-building-permits"
    },
    {
      "number": "200505253430",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2005-05-25",
      "status_date": "2009-01-27",
      "estimated_cost": 20000,
      "revised_cost": 40000,
      "description": "enclosed portion of deck at third floor.",
      "source": "sf-building-permits"
    },
    {
      "number": "200305134483",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2003-05-13",
      "status_date": "2003-06-06",
      "estimated_cost": 3500,
      "revised_cost": 3500,
      "description": "remove & replace 3 windows at the front of the building",
      "source": "sf-building-permits"
    },
    {
      "number": "200002041127",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-02-04",
      "status_date": "2000-06-04",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to #9820422",
      "source": "sf-building-permits"
    },
    {
      "number": "9820422",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1998-10-07",
      "status_date": "2000-03-23",
      "estimated_cost": 20000,
      "description": "horizontal addition",
      "source": "sf-building-permits"
    },
    {
      "number": "9216144",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1992-09-18",
      "status_date": "1993-11-04",
      "estimated_cost": 4100,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9214210",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1992-08-20",
      "status_date": "1992-10-21",
      "estimated_cost": 2000,
      "description": "install new skylight, track & ceiling lighting in study",
      "source": "sf-building-permits"
    },
    {
      "number": "9105138",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1991-04-02",
      "status_date": "1991-12-03",
      "estimated_cost": 5000,
      "description": "horizontal addition",
      "source": "sf-building-permits"
    },
    {
      "number": "8209893",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1982-12-02",
      "status_date": "1983-06-29",
      "estimated_cost": 15000,
      "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=4238",
      "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=2749024A&$order=closed_roll_year%20DESC&$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=2749&lot=024A",
      "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=2749024A",
      "retrieved": "2026-07-28"
    }
  ]
}