{
  "address": "3809 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/3809/",
  "apn": "3606001",
  "block": "3606",
  "lot": "001",
  "eas_baseid": "362157",
  "coordinates": {
    "lat": 37.758012,
    "lng": -122.426128
  },
  "parcel": {
    "year_built": 1922,
    "units": 25,
    "stories": 3,
    "rooms": 74,
    "bathrooms": 25,
    "lot_area_sqft": 7600,
    "building_area_sqft": 17552,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 15 Units or more",
    "construction_type_code": "D",
    "zoning": "RM-1",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 3809 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 5501527,
    "assessed_improvement_value": 4090189,
    "last_sale_date": "2012-05-03"
  },
  "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": "1922",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202501067760",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-01-06",
      "status_date": "2025-03-26",
      "estimated_cost": 35000,
      "revised_cost": 63169,
      "description": "one unit: remodel one kitchen & one bathroom. install washer & dryer in existing closet.",
      "source": "sf-building-permits"
    },
    {
      "number": "202404039222",
      "type": "additions alterations or repairs",
      "status": "approved",
      "filed": "2024-04-18",
      "status_date": "2026-05-13",
      "estimated_cost": 73355,
      "revised_cost": 88717,
      "source": "sf-building-permits"
    },
    {
      "number": "202210053834",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-10-05",
      "status_date": "2023-02-16",
      "estimated_cost": 28000,
      "revised_cost": 28000,
      "description": "108: rehabilitate existing kitchen and bathroom. install washer and dryer.",
      "source": "sf-building-permits"
    },
    {
      "number": "202106041684",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2021-06-04",
      "status_date": "2021-06-04",
      "estimated_cost": 30000,
      "revised_cost": 30000,
      "description": "remodel one kitchen and one bathroom: re[place washer/ dryer same size and location as existing",
      "source": "sf-building-permits"
    },
    {
      "number": "202010146435",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2020-10-14",
      "status_date": "2020-10-14",
      "estimated_cost": 45000,
      "revised_cost": 45000,
      "description": "one unit: rehabilitate existing bathroom & kitchen. install washer & dryer in existing closet",
      "source": "sf-building-permits"
    },
    {
      "number": "201912200220",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-12-20",
      "status_date": "2020-02-12",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "one unit: replace washer/dryer in (e) closet. no moving of walls, no structural work",
      "source": "sf-building-permits"
    },
    {
      "number": "201910043583",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-10-04",
      "status_date": "2019-11-12",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "one unit: upgrade (e) washer/dryer tp mew version combo ventless in (e) closet, no structural work, no moving walls.",
      "source": "sf-building-permits"
    },
    {
      "number": "201901140330",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-01-14",
      "status_date": "2019-05-01",
      "estimated_cost": 32000,
      "revised_cost": 32000,
      "description": "one unit - rehabilitate existing kitchen and bathroom. install washer/dryer",
      "source": "sf-building-permits"
    },
    {
      "number": "201812208935",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-12-20",
      "status_date": "2019-05-16",
      "estimated_cost": 28000,
      "revised_cost": 40000,
      "description": "one unit: 1)rehabilitate extg kitchen. 2)rehabilitate extg bathroom. 3)install washer and dryer.",
      "source": "sf-building-permits"
    },
    {
      "number": "201807033659",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-07-03",
      "status_date": "2018-08-06",
      "estimated_cost": 1000,
      "revised_cost": 1000,
      "description": "one unit: repair exterior stucco approx area 8'x8' at interior courtyard. repair in kind, match existing.",
      "source": "sf-building-permits"
    },
    {
      "number": "M904507",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-03-23",
      "status_date": "2018-03-23",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201803133528",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-03-13",
      "status_date": "2018-07-20",
      "estimated_cost": 32000,
      "revised_cost": 36000,
      "description": "one unit - rehabilitate existing kitchen, bathroom and install washer/dryer",
      "source": "sf-building-permits"
    },
    {
      "number": "201803133529",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-03-13",
      "status_date": "2018-07-20",
      "estimated_cost": 32000,
      "revised_cost": 36000,
      "description": "one unit - rehabilitate existing kitchen, bathroom and install washer/dryer",
      "source": "sf-building-permits"
    },
    {
      "number": "201803073083",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-03-07",
      "status_date": "2018-07-20",
      "estimated_cost": 32000,
      "revised_cost": 32000,
      "description": "one unit: rehabilate (e) kitchen & bathroom install w/d",
      "source": "sf-building-permits"
    },
    {
      "number": "201607202853",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-07-20",
      "status_date": "2018-10-03",
      "estimated_cost": 184600,
      "revised_cost": 184600,
      "description": "mandator soft story per sfbc ch 34b iebc a4 method",
      "source": "sf-building-permits"
    },
    {
      "number": "201602038774",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2016-02-03",
      "status_date": "2016-03-09",
      "estimated_cost": 500,
      "revised_cost": 500,
      "description": "one unit, revision to pa 2015-0617-9215, provide drop beam to support floor framing above, move door",
      "source": "sf-building-permits"
    },
    {
      "number": "M657407",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2016-01-22",
      "status_date": "2016-01-22",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201512285983",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-12-28",
      "status_date": "2016-01-11",
      "estimated_cost": 20000,
      "revised_cost": 30000,
      "description": "one unit: remodel at 3rd floor. remodel extg bathroom, remodel extg kitchen, and add washer and dryer. n/a for maher.",
      "source": "sf-building-permits"
    },
    {
      "number": "201506179215",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-06-17",
      "status_date": "2016-04-21",
      "estimated_cost": 60000,
      "revised_cost": 60000,
      "description": "remodel one unit at gr fl. remodel existing dining to 1 bedroom, remodel ktichen and addition of dishwasher, remodel existing bath, addition of new bath, addition of new washer and dryer",
      "source": "sf-building-permits"
    },
    {
      "number": "201502128247",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-02-12",
      "status_date": "2015-07-08",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "#305- add washer & dryer, add dishwasher. n/a ordinance #155-13",
      "source": "sf-building-permits"
    },
    {
      "number": "201410219503",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-10-21",
      "status_date": "2015-03-17",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "one unit: remodel/relocating kitchen fixtures, add new w/d, new laundry outlet.",
      "source": "sf-building-permits"
    },
    {
      "number": "201210262876",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-10-26",
      "status_date": "2013-02-12",
      "estimated_cost": 25000,
      "revised_cost": 25000,
      "description": "renovate one unit only. remove (e) partitions, renovate kitchen, new condensor washer /dryer, no work to exterior.",
      "source": "sf-building-permits"
    },
    {
      "number": "201210262929",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-10-26",
      "status_date": "2012-12-04",
      "estimated_cost": 6000,
      "revised_cost": 6000,
      "description": "see attached supplemental inspection 12373, item 1,dtd 10-4-12, 12\" cap over existing #4 rebar and epoxy @ 12\" o.c. total hight after work 16\" neighboring prop approx 4\" above grade",
      "source": "sf-building-permits"
    },
    {
      "number": "201207235527",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-07-23",
      "status_date": "2012-07-25",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "corrected termit report for permit # 201206263508. item #3 - foundation repair sill plate 12\" max cap.",
      "source": "sf-building-permits"
    },
    {
      "number": "201206263508",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-06-26",
      "status_date": "2012-07-25",
      "estimated_cost": 18000,
      "revised_cost": 18000,
      "description": "see attached termit report #12373, item #1,2,3,4- repair frame bass with 12\" cap over with #4 rebar dowel at 12\" o.c. with epoxy at center partition walls in basement.",
      "source": "sf-building-permits"
    },
    {
      "number": "201202234673",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-02-23",
      "status_date": "2012-06-01",
      "estimated_cost": 14500,
      "revised_cost": 18800,
      "description": "one unit: remodel kitchen and bath, kitchen-cabinets, counter top, sinks, flooring; bath- sink and flooring, lighting to comply with cec 150(k)",
      "source": "sf-building-permits"
    },
    {
      "number": "200810315659",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-10-31",
      "status_date": "2009-02-04",
      "estimated_cost": 21265,
      "revised_cost": 21265,
      "description": "work @ one unit.kitchen: upgrade cab & appliances cut sheet rock as necessary for electric/plumbing upgrades, (new counters & floors). bathroom: remove existing tile (if necessary replace dry drot members) upgrade plumbing fixtures. (bathroom/kitchen to comply with tile 24) lighting to comply with",
      "source": "sf-building-permits"
    },
    {
      "number": "200809192186",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-09-19",
      "status_date": "2008-11-18",
      "estimated_cost": 15000,
      "revised_cost": 15000,
      "description": "work on one unit. kitchen: upgrade kitchen cab, plumbing fixtures & new appliances & patch walls as necessary. bathroom: remove existing plumbing fixtures bath tub tile upgreade plumbing fix & bath tub tile. (in kind) no structual work 1 comply bathroom & kitchen with title 24 same size -same",
      "source": "sf-building-permits"
    },
    {
      "number": "200804179948",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-04-17",
      "status_date": "2008-08-27",
      "estimated_cost": 15000,
      "revised_cost": 15000,
      "description": "one unit- kitchen and bathroom remodel. no structural work, no lighting work, remove & repalce cabinet, counter, floor & wall tile.",
      "source": "sf-building-permits"
    },
    {
      "number": "200801172674",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-01-17",
      "status_date": "2008-08-18",
      "estimated_cost": 15000,
      "revised_cost": 15000,
      "description": "one unit: kitchen and bath remodel. no structural work. no lighting work.",
      "source": "sf-building-permits"
    },
    {
      "number": "200712049534",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2007-12-04",
      "status_date": "2007-12-04",
      "estimated_cost": 27000,
      "revised_cost": 27000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200708200363",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2007-08-20",
      "status_date": "2008-02-06",
      "estimated_cost": 42000,
      "revised_cost": 42000,
      "description": "work @ three units only. upgrade 3 kitchen cabinets, countertops & flooring. upgrade 3 bathroom tiles in floor & wall. new lighting.",
      "source": "sf-building-permits"
    },
    {
      "number": "200503157563",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2005-03-15",
      "status_date": "2005-04-28",
      "estimated_cost": 3800,
      "revised_cost": 3800,
      "description": "replace an (e) fire alarm panel with a new fa panel (like for like). all (e) field devices are",
      "source": "sf-building-permits"
    },
    {
      "number": "9701309",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1997-01-23",
      "status_date": "1997-08-21",
      "estimated_cost": 22763,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "8508244",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1985-08-01",
      "status_date": "1986-02-19",
      "estimated_cost": 18900,
      "description": "furnish & install 11 solar collector",
      "source": "sf-building-permits"
    },
    {
      "number": "8410737",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "1984-10-04",
      "status_date": "1985-04-10",
      "estimated_cost": 18900,
      "description": "tie in solar system too existing boiler unit.",
      "source": "sf-building-permits"
    },
    {
      "number": "8205189",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1982-06-25",
      "status_date": "1983-03-04",
      "estimated_cost": 15000,
      "description": "bldg use: apt.",
      "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=3809",
      "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=3606001&$order=closed_roll_year%20DESC&$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=3606&lot=001",
      "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=3606001",
      "retrieved": "2026-07-28"
    }
  ]
}