{
  "address": "4235–4237 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/4235/",
  "apn": "2752029",
  "block": "2752",
  "lot": "029",
  "eas_baseid": "345563",
  "coordinates": {
    "lat": 37.757403,
    "lng": -122.435471
  },
  "address_range": "4235–4237",
  "street_numbers_on_parcel": [
    "4235",
    "4237"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 2,
    "stories": 2,
    "rooms": 10,
    "bathrooms": 2,
    "lot_area_sqft": 2748,
    "building_area_sqft": 2745,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "4237 4235 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 265216,
    "assessed_improvement_value": 265216,
    "last_sale_date": "1991-11-22"
  },
  "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": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202505196787",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-05-19",
      "status_date": "2025-07-16",
      "estimated_cost": 3500,
      "revised_cost": 3500,
      "description": "repair interior drywall and exterior siding due to water damage. work not visible from the street. all repairs in kind. approx 15 sq ft of sheet rock and 15 sq ft of siding.",
      "source": "sf-building-permits"
    },
    {
      "number": "202002245189",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-02-24",
      "status_date": "2020-07-07",
      "estimated_cost": 17931,
      "revised_cost": 17931,
      "description": "removal of old existing roofing material, installation of new roof assembly.",
      "source": "sf-building-permits"
    },
    {
      "number": "M338529",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-07-30",
      "status_date": "2012-07-30",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "200804159714",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-04-15",
      "status_date": "2008-04-16",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "change dwelling units from 1 to 2. revision to previous appl 200803318392.",
      "source": "sf-building-permits"
    },
    {
      "number": "200803318392",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-03-31",
      "status_date": "2008-04-21",
      "estimated_cost": 3000,
      "revised_cost": 3000,
      "description": "repair dryrot at back stairs. repair/patch concrete back steps. approx 7 steps to be repair at the rear of bldg. approx 6 steps to be demo & repoure leading to rear yard level. remove (e) deck approx. 12'x12'.",
      "source": "sf-building-permits"
    },
    {
      "number": "9400584",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1994-01-12",
      "status_date": "1994-03-09",
      "estimated_cost": 1,
      "description": "permit inspection renewal #9208636",
      "source": "sf-building-permits"
    },
    {
      "number": "9400585",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1994-01-12",
      "status_date": "1994-03-09",
      "estimated_cost": 1,
      "description": "permit inspection renewal #9208636",
      "source": "sf-building-permits"
    },
    {
      "number": "9309009",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1993-05-28",
      "status_date": "1993-12-16",
      "estimated_cost": 3000,
      "description": "balustrade to be const along roof of (e)garage",
      "source": "sf-building-permits"
    },
    {
      "number": "9208636",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1992-05-28",
      "status_date": "1993-09-09",
      "estimated_cost": 65000,
      "revised_cost": 35000,
      "description": "install foundations frame in new bath from (e) lower room",
      "source": "sf-building-permits"
    },
    {
      "number": "9205543",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1992-04-07",
      "status_date": "1993-05-26",
      "estimated_cost": 20000,
      "description": "remove plaster.from walls,ceiling in bath,kitchen,retile sho",
      "source": "sf-building-permits"
    },
    {
      "number": "9204508",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1992-03-23",
      "status_date": "1992-07-23",
      "estimated_cost": 3000,
      "description": "remov rot balestr, replace",
      "source": "sf-building-permits"
    },
    {
      "number": "9201418",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1992-01-28",
      "status_date": "1992-07-28",
      "estimated_cost": 10000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9201170",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1992-01-23",
      "status_date": "1992-05-07",
      "estimated_cost": 3000,
      "description": "demolish existing brick chimney",
      "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=20TH&street_type=ST&address_number=4235",
      "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=2752029&$order=closed_roll_year%20DESC&$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=2752&lot=029",
      "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=2752029",
      "retrieved": "2026-07-28"
    }
  ]
}