{
  "address": "3925–3927 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/3925/",
  "apn": "3605067",
  "block": "3605",
  "lot": "067",
  "eas_baseid": "362138",
  "coordinates": {
    "lat": 37.757809,
    "lng": -122.428629
  },
  "address_range": "3925–3927",
  "street_numbers_on_parcel": [
    "3925",
    "3927"
  ],
  "parcel": {
    "year_built": 1900,
    "stories": 4,
    "rooms": 9,
    "bathrooms": 4,
    "bedrooms": 4,
    "lot_area_sqft": 2848,
    "building_area_sqft": 3741,
    "basement_area_sqft": 520,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 3925 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 4719254,
    "assessed_improvement_value": 2022537,
    "last_sale_date": "2022-10-05"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "Historic Resource Evaluation Response",
    "yearbuilt": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202412096440",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-12-09",
      "status_date": "2025-04-23",
      "estimated_cost": 36800,
      "revised_cost": 56800,
      "description": "2/f: reconfigure kitchen layout and expand existing rear deck per plan.",
      "source": "sf-building-permits"
    },
    {
      "number": "202407166619",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-07-16",
      "status_date": "2024-09-03",
      "estimated_cost": 40000,
      "revised_cost": 40000,
      "description": "3/f: split (e) bedroom to bedroom and office. 4/f: reduced balcony size at e) rooftop balcony and add one fixed windows",
      "source": "sf-building-permits"
    },
    {
      "number": "201211134095",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-11-13",
      "status_date": "2012-11-26",
      "estimated_cost": 1800,
      "revised_cost": 1800,
      "description": "installation of a sprinkler monitoring system including: (1) fire alarm control panel, (1) smoke detector, (1) manual pull station, & (2) input modules.",
      "source": "sf-building-permits"
    },
    {
      "number": "201210252818",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-10-25",
      "status_date": "2013-02-19",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa# 2012-0203-3486-as builts floor plans",
      "source": "sf-building-permits"
    },
    {
      "number": "201207265870",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-07-26",
      "status_date": "2012-09-06",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "comply with nov 200341807. unclog toilet, brade and elevate water heater",
      "source": "sf-building-permits"
    },
    {
      "number": "201205140379",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-05-14",
      "status_date": "2012-11-26",
      "estimated_cost": 18000,
      "revised_cost": 26672,
      "description": "install fire sprinkler system throughout building and 2\" underground combination fire service, per nfpa 13. 48 sprinklers total",
      "source": "sf-building-permits"
    },
    {
      "number": "201202033486",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-02-03",
      "status_date": "2013-02-19",
      "estimated_cost": 15000,
      "revised_cost": 35000,
      "description": "revision to pa #2008.06.03.3551 - reconfigure interior layout. add entertainment room & bthroom at first floor. infill central skylight at 4th flr",
      "source": "sf-building-permits"
    },
    {
      "number": "201110207279",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-10-20",
      "status_date": "2013-01-29",
      "estimated_cost": 8000,
      "revised_cost": 9183,
      "description": "revision to appl #200806033551: revised retaining wall at rear yard per plan.",
      "source": "sf-building-permits"
    },
    {
      "number": "200806033551",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2008-06-03",
      "status_date": "2013-01-29",
      "estimated_cost": 390000,
      "revised_cost": 425000,
      "description": "interior remodel at floors 1, 2 & 3. vertical addition, add 4th story.",
      "source": "sf-building-permits"
    },
    {
      "number": "200609212966",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2006-09-21",
      "status_date": "2007-10-12",
      "estimated_cost": 500,
      "revised_cost": 500,
      "description": "remove a 4' section of non-load bearing interior wall to join 2 dwelling unit into 1. to respond to complaint #200117668 his, 200341796 bid, 200341801 ced.",
      "source": "sf-building-permits"
    },
    {
      "number": "200105028278",
      "type": "demolitions",
      "status": "withdrawn",
      "filed": "2001-05-02",
      "status_date": "2005-02-07",
      "description": "demolish a two story, two unit dwelling",
      "source": "sf-building-permits"
    },
    {
      "number": "200105028277",
      "type": "new construction wood frame",
      "status": "withdrawn",
      "filed": "2001-05-02",
      "status_date": "2005-02-07",
      "estimated_cost": 300000,
      "description": "erect a four story two unit residential bldg",
      "source": "sf-building-permits"
    },
    {
      "number": "8817043",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1988-10-31",
      "status_date": "1989-01-26",
      "estimated_cost": 7000,
      "description": "no structural work, drywall",
      "source": "sf-building-permits"
    },
    {
      "number": "8801629",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1988-02-09",
      "status_date": "1988-12-09",
      "estimated_cost": 10000,
      "description": "replace windows, complete wood frame",
      "source": "sf-building-permits"
    },
    {
      "number": "8503117",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1985-03-28",
      "status_date": "1986-05-16",
      "estimated_cost": 3000,
      "description": "replace rear stairs",
      "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=3925",
      "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=3605067&$order=closed_roll_year%20DESC&$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=067",
      "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=3605067",
      "retrieved": "2026-07-28"
    }
  ]
}