{
  "address": "4054 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/4054/",
  "apn": "3601020",
  "block": "3601",
  "lot": "020",
  "eas_baseid": "361768",
  "coordinates": {
    "lat": 37.758123,
    "lng": -122.431529
  },
  "parcel": {
    "year_built": 1907,
    "units": 1,
    "stories": 2,
    "rooms": 9,
    "bathrooms": 3,
    "bedrooms": 3,
    "lot_area_sqft": 2850,
    "building_area_sqft": 2494,
    "basement_area_sqft": 857,
    "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 4054 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1789160,
    "assessed_improvement_value": 816027,
    "last_sale_date": "2010-10-29"
  },
  "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": "1907",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202508273954",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-08-27",
      "status_date": "2026-03-11",
      "estimated_cost": 110000,
      "revised_cost": 110000,
      "description": "replace existing stucco facade and stair treads and garage door and stair trellis",
      "source": "sf-building-permits"
    },
    {
      "number": "201209210313",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-09-21",
      "status_date": "2012-12-05",
      "estimated_cost": 8000,
      "revised_cost": 8000,
      "description": "new rear deck and new firewalls",
      "source": "sf-building-permits"
    },
    {
      "number": "201209139645",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-09-13",
      "status_date": "2012-12-05",
      "estimated_cost": 52000,
      "revised_cost": 52000,
      "description": "minor interior remodel (window cellar and storage) replace garage door, remove windows and install sliding glass doors at rear, add 2 small windows, expand existing roof deck",
      "source": "sf-building-permits"
    },
    {
      "number": "200706143968",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2007-06-14",
      "status_date": "2007-08-06",
      "estimated_cost": 70000,
      "revised_cost": 70000,
      "description": "renew app #200503187894 and to continue work and increase valuation to $150,000.00 per correction notice pay additional fees on $70,000.00",
      "source": "sf-building-permits"
    },
    {
      "number": "200610104497",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2006-10-10",
      "status_date": "2006-10-10",
      "estimated_cost": 25000,
      "revised_cost": 25000,
      "description": "install solar pv system on roof top and associated equipment in garage.",
      "source": "sf-building-permits"
    },
    {
      "number": "200503187894",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2005-03-18",
      "status_date": "2007-08-30",
      "estimated_cost": 80000,
      "revised_cost": 160000,
      "description": "modifications on first and second fls, rear addition on 1st, 2nd and third fls including 2 new bedrm and new dining room",
      "source": "sf-building-permits"
    },
    {
      "number": "9903506",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1999-02-23",
      "status_date": "1999-06-15",
      "estimated_cost": 6000,
      "description": "repair dryrot and repair stucco as needed",
      "source": "sf-building-permits"
    },
    {
      "number": "9824471",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1998-11-30",
      "status_date": "1999-06-15",
      "estimated_cost": 5000,
      "description": "repair front stairs remove (e) brick stairs(6)repair dry rot",
      "source": "sf-building-permits"
    },
    {
      "number": "9616895",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1996-09-09",
      "status_date": "1996-12-06",
      "estimated_cost": 5350,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9609451",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1996-05-30",
      "status_date": "1996-11-30",
      "estimated_cost": 10000,
      "description": "repair/replacement of bathrm floor tile & shower stall.",
      "source": "sf-building-permits"
    },
    {
      "number": "9302931",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1993-02-23",
      "status_date": "1993-03-08",
      "estimated_cost": 1800,
      "description": "retr blts to fnd-repair dry rot where needed",
      "source": "sf-building-permits"
    },
    {
      "number": "8904270",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1989-03-17",
      "status_date": "1989-08-11",
      "estimated_cost": 3500,
      "description": "remodel bathroom",
      "source": "sf-building-permits"
    },
    {
      "number": "8820401",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1988-12-28",
      "status_date": "1989-05-30",
      "estimated_cost": 100,
      "description": "replace existing 4x4 post & footing.",
      "source": "sf-building-permits"
    },
    {
      "number": "8814551",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1988-09-28",
      "status_date": "1989-05-30",
      "estimated_cost": 10585,
      "description": "horizontal addition",
      "source": "sf-building-permits"
    },
    {
      "number": "8713344",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1987-09-16",
      "status_date": "1988-04-08",
      "estimated_cost": 7500,
      "description": "replace kitchen cupboard, counter tops, and applicances.",
      "source": "sf-building-permits"
    },
    {
      "number": "8707839",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1987-06-05",
      "status_date": "1987-12-08",
      "estimated_cost": 800,
      "description": "5/8'' sheetrock to overlay existing lathe",
      "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=4054",
      "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=3601020&$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=3601&lot=020",
      "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=3601020",
      "retrieved": "2026-07-28"
    }
  ]
}