{
  "address": "3960 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/3960/",
  "apn": "3600017A",
  "block": "3600",
  "lot": "017A",
  "eas_baseid": "361698",
  "coordinates": {
    "lat": 37.758258,
    "lng": -122.429311
  },
  "parcel": {
    "year_built": 1916,
    "units": 1,
    "stories": 2,
    "rooms": 8,
    "bathrooms": 3,
    "bedrooms": 2,
    "lot_area_sqft": 2848,
    "building_area_sqft": 2308,
    "basement_area_sqft": 258,
    "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 3960 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2263735,
    "assessed_improvement_value": 1038086,
    "last_sale_date": "2020-04-21"
  },
  "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": "1916",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202102235117",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2021-02-23",
      "status_date": "2021-10-04",
      "estimated_cost": 50000,
      "revised_cost": 50000,
      "description": "bathroom addition. retile master bath.",
      "source": "sf-building-permits"
    },
    {
      "number": "202102114434",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2021-02-11",
      "status_date": "2021-11-04",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "removal of post at 3rd floor. ref pa# 202012019915.",
      "source": "sf-building-permits"
    },
    {
      "number": "202012019915",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-12-01",
      "status_date": "2021-11-04",
      "estimated_cost": 25000,
      "revised_cost": 25000,
      "description": "kitchen remodel",
      "source": "sf-building-permits"
    },
    {
      "number": "200606224806",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2006-06-22",
      "status_date": "2006-07-14",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew 99181255 ( sp insp. req), 200012218501, 200101099481 ( sp insp req) for final inspection.",
      "source": "sf-building-permits"
    },
    {
      "number": "200606224808",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2006-06-22",
      "status_date": "2006-07-14",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew 99181255 8900682, 8901413 & 8901738 for final inspection.",
      "source": "sf-building-permits"
    },
    {
      "number": "200606224809",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2006-06-22",
      "status_date": "2006-07-14",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew 200205136451, 200307290608, 200503177778 & 200508220775 for final inspection.",
      "source": "sf-building-permits"
    },
    {
      "number": "200508220775",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2005-08-22",
      "status_date": "2005-08-22",
      "estimated_cost": 4880,
      "revised_cost": 4800,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200503177778",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2005-03-17",
      "status_date": "2005-03-17",
      "estimated_cost": 70000,
      "revised_cost": 70000,
      "description": "renew pa 200307290608 to complete work",
      "source": "sf-building-permits"
    },
    {
      "number": "200307290608",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2003-07-29",
      "status_date": "2006-07-14",
      "estimated_cost": 75000,
      "revised_cost": 75000,
      "description": "renew #200205136451,9918125,200012218501,200101099481 to complete the job",
      "source": "sf-building-permits"
    },
    {
      "number": "200205136451",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2002-05-13",
      "status_date": "2002-05-13",
      "estimated_cost": 75000,
      "revised_cost": 75000,
      "description": "renew#9918125 for final inspection",
      "source": "sf-building-permits"
    },
    {
      "number": "M16154",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2001-05-09",
      "status_date": "2001-09-09",
      "revised_cost": 5000,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "200101099481",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2001-01-09",
      "status_date": "2001-05-09",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "revision to permit#9918125s.add moment frame to rear bottom floors of building",
      "source": "sf-building-permits"
    },
    {
      "number": "200012218501",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-12-21",
      "status_date": "2001-04-21",
      "estimated_cost": 501,
      "revised_cost": 501,
      "description": "revision permit request on foundation plan, garden room &rear garden retaining wall.",
      "source": "sf-building-permits"
    },
    {
      "number": "200005190450",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2000-05-19",
      "status_date": "2000-06-07",
      "estimated_cost": 7890,
      "revised_cost": 7890,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9922759",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1999-10-27",
      "status_date": "2000-05-31",
      "estimated_cost": 5492,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9918125S",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1999-08-30",
      "status_date": "2002-03-30",
      "estimated_cost": 150000,
      "revised_cost": 150000,
      "description": "removal of extg decks & outbuilding/nw fire rated wlls",
      "source": "sf-building-permits"
    },
    {
      "number": "9204061",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1992-03-16",
      "status_date": "1992-09-10",
      "estimated_cost": 15000,
      "description": "remove old kitchen cabinet, install new cabinets, & sink.",
      "source": "sf-building-permits"
    },
    {
      "number": "8903328",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1989-03-01",
      "status_date": "1989-04-04",
      "estimated_cost": 2500,
      "description": "install aluminum windows in existing frames",
      "source": "sf-building-permits"
    },
    {
      "number": "8901738",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1989-02-01",
      "status_date": "1989-06-13",
      "estimated_cost": 1159,
      "description": "install aluminum windows in existing frames",
      "source": "sf-building-permits"
    },
    {
      "number": "8901413",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1989-01-26",
      "status_date": "1989-06-13",
      "estimated_cost": 794,
      "description": "install aluminum windows in existing frames",
      "source": "sf-building-permits"
    },
    {
      "number": "8900682",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1989-01-18",
      "status_date": "1989-05-04",
      "estimated_cost": 2040,
      "description": "replacement installation of 3 wood windows in lvng room.",
      "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=3960",
      "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=3600017A&$order=closed_roll_year%20DESC&$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=3600&lot=017A",
      "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=3600017A",
      "retrieved": "2026-07-28"
    }
  ]
}