{
  "address": "3962 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/3962/",
  "apn": "3600018",
  "block": "3600",
  "lot": "018",
  "eas_baseid": "361699",
  "coordinates": {
    "lat": 37.758252,
    "lng": -122.429398
  },
  "parcel": {
    "year_built": 1902,
    "units": 1,
    "stories": 3,
    "rooms": 9,
    "bathrooms": 3,
    "bedrooms": 4,
    "lot_area_sqft": 2850,
    "building_area_sqft": 3083,
    "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 3962 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2748528,
    "assessed_improvement_value": 1177940,
    "last_sale_date": "2022-03-24"
  },
  "historic_status": {
    "ceqa_status_code": "C",
    "ceqa_status_code_article_10_11": "C",
    "ceqa_status_label": "Not a historical resource",
    "reason": "Historic Resource Evaluation Response",
    "yearbuilt": "1902",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202309086236",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-09-08",
      "status_date": "2024-02-29",
      "estimated_cost": 30000,
      "revised_cost": 30000,
      "description": "remove parapet capping at 3rd floor deck and replace with new sheetmetal capping. remove and reinstall guardrail. replace degraded lumber or plywood as needed due to water intrusion. repair in kind.",
      "source": "sf-building-permits"
    },
    {
      "number": "M211228",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2010-07-14",
      "status_date": "2010-07-14",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201005263253",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-05-26",
      "status_date": "2011-03-04",
      "estimated_cost": 1,
      "revised_cost": 100,
      "description": "revision to: 200807257648. remove divided lights from window design @ front facade. change design of brackets details @ facade.",
      "source": "sf-building-permits"
    },
    {
      "number": "200807257648",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2008-07-25",
      "status_date": "2011-03-04",
      "estimated_cost": 147000,
      "revised_cost": 567000,
      "description": "remodel and vertical addition to an extg 1 story single family res. work to include remodeling extg 1st floor (including kichen) and extg basement/garage level. work also to include the vertical addition of one full story, an attic story and a rear yard deck w/a nw stair,nw dormer, nw skylight.",
      "source": "sf-building-permits"
    },
    {
      "number": "200210158935",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-10-15",
      "status_date": "2002-10-30",
      "estimated_cost": 2000,
      "revised_cost": 2000,
      "description": "replacing small part of exterior foundation rear section, extend foundation up 2' x 16 linear feet",
      "source": "sf-building-permits"
    },
    {
      "number": "200012188205",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-12-18",
      "status_date": "2001-04-18",
      "estimated_cost": 1500,
      "revised_cost": 1500,
      "description": "provide concrete underpinnint for 9'foundation for completion of 3960 20th street per#914642",
      "source": "sf-building-permits"
    },
    {
      "number": "8710137",
      "type": "otc alterations permit",
      "status": "approved",
      "filed": "1987-07-20",
      "status_date": "1988-07-26",
      "estimated_cost": 1000,
      "description": "replace grade beam st garage enterence, reinforce floor.",
      "source": "sf-building-permits"
    },
    {
      "number": "8709195",
      "type": "otc alterations permit",
      "status": "approved",
      "filed": "1987-07-01",
      "status_date": "1988-07-26",
      "estimated_cost": 3500,
      "description": "raise foundation reeaarwall, sheet rock garage & attic.",
      "source": "sf-building-permits"
    },
    {
      "number": "8709064",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1987-06-29",
      "status_date": "1988-07-22",
      "estimated_cost": 28000,
      "description": "horizontal extension, bath & deck addition",
      "source": "sf-building-permits"
    },
    {
      "number": "8708680",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1987-06-22",
      "status_date": "1987-07-20",
      "estimated_cost": 1000,
      "description": "demo storage shed",
      "source": "sf-building-permits"
    },
    {
      "number": "8615509",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1986-12-08",
      "status_date": "1987-03-30",
      "estimated_cost": 3000,
      "description": "raise that foundation 1 foot above grade",
      "source": "sf-building-permits"
    },
    {
      "number": "8611860",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1986-09-25",
      "status_date": "1987-02-02",
      "estimated_cost": 300,
      "description": "replace garage door, install new overhead garage door",
      "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=3962",
      "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=3600018&$order=closed_roll_year%20DESC&$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=018",
      "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=3600018",
      "retrieved": "2026-07-28"
    }
  ]
}