{
  "address": "3987 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/3987/",
  "apn": "3605055A",
  "block": "3605",
  "lot": "055A",
  "eas_baseid": "362127",
  "coordinates": {
    "lat": 37.757775,
    "lng": -122.42984
  },
  "parcel": {
    "year_built": 1916,
    "units": 1,
    "stories": 2,
    "rooms": 6,
    "bathrooms": 2,
    "bedrooms": 3,
    "lot_area_sqft": 2134,
    "building_area_sqft": 1778,
    "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 3987 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1342868,
    "assessed_improvement_value": 927688,
    "last_sale_date": "2012-10-12"
  },
  "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": "201609097224",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2016-09-09",
      "status_date": "2016-09-09",
      "estimated_cost": 26000,
      "revised_cost": 28000,
      "description": "kitchen remodel - replace cabinets, counters & appliances and electric ventless wahser dryer unit, led lightes",
      "source": "sf-building-permits"
    },
    {
      "number": "M519027",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2014-09-19",
      "status_date": "2014-09-19",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201407211719",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-07-21",
      "status_date": "2015-01-13",
      "estimated_cost": 20000,
      "revised_cost": 32600,
      "description": "remodel e bathrooms. infill lightwell at 2nd floor only. remodel bedroom closet. install new windows",
      "source": "sf-building-permits"
    },
    {
      "number": "201007066032",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "2010-07-06",
      "status_date": "2017-02-02",
      "estimated_cost": 200000,
      "description": "rear yard addition on 3 levels w/new roof deck. approved variance: 10-001 v. planner: m. smith.",
      "source": "sf-building-permits"
    },
    {
      "number": "200808118906",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-08-11",
      "status_date": "2008-08-20",
      "estimated_cost": 1000,
      "revised_cost": 1000,
      "description": "legalize skylight to comply with n.o.v. # 200865284.",
      "source": "sf-building-permits"
    },
    {
      "number": "200605171795",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2006-05-17",
      "status_date": "2006-05-22",
      "estimated_cost": 5500,
      "revised_cost": 5500,
      "description": "to renew expired pa#9511038 for final inspection.",
      "source": "sf-building-permits"
    },
    {
      "number": "200604219583",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "2006-04-21",
      "status_date": "2009-04-28",
      "estimated_cost": 75000,
      "revised_cost": 75000,
      "description": "rear addition at garage level, enclosing space under extg deck to provide garden room & laundry and new stair hall from 1st floor to garage level. new bay wndow at extg bedroom on 2nd floor",
      "source": "sf-building-permits"
    },
    {
      "number": "200602174899",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2006-02-17",
      "status_date": "2006-05-10",
      "estimated_cost": 7879,
      "revised_cost": 7879,
      "description": "replace 8 windows,size for size,visible from street,wood to wood.",
      "source": "sf-building-permits"
    },
    {
      "number": "200405103445",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2004-05-10",
      "status_date": "2004-10-14",
      "estimated_cost": 4171,
      "revised_cost": 4171,
      "description": "replace 5 windows,size for size,same place/location.not visible from street",
      "source": "sf-building-permits"
    },
    {
      "number": "9511038",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1995-07-18",
      "status_date": "1997-05-27",
      "estimated_cost": 11000,
      "description": "partial foundation replacement/new slab/new posts & beam sup",
      "source": "sf-building-permits"
    },
    {
      "number": "9006651",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1990-04-06",
      "status_date": "1991-05-01",
      "estimated_cost": 100,
      "description": "compelte process for final insp under permit #8900415",
      "source": "sf-building-permits"
    },
    {
      "number": "8900415",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1989-01-10",
      "status_date": "1989-08-08",
      "estimated_cost": 12000,
      "description": "bathroom alteration & wall repair @ 2nd floor",
      "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=3987",
      "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=3605055A&$order=closed_roll_year%20DESC&$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=3605&lot=055A",
      "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=3605055A",
      "retrieved": "2026-07-28"
    }
  ]
}