{
  "address": "3700 20th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/20th-street/3700/",
  "apn": "3598009",
  "block": "3598",
  "lot": "009",
  "eas_baseid": "361616",
  "coordinates": {
    "lat": 37.758483,
    "lng": -122.423824
  },
  "parcel": {
    "year_built": 1925,
    "units": 25,
    "stories": 3,
    "rooms": 55,
    "bathrooms": 25,
    "lot_area_sqft": 5919,
    "building_area_sqft": 15369,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 15 Units or more",
    "construction_type_code": "D",
    "zoning": "RM-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Mission Dolores",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "0000 3700 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 750631,
    "assessed_improvement_value": 1381928
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "Historic Survey Result",
    "yearbuilt": "1925",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202602276644",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2026-02-27",
      "status_date": "2026-03-18",
      "estimated_cost": 35000,
      "revised_cost": 35000,
      "description": "tear off, install bitumen by torch down.",
      "source": "sf-building-permits"
    },
    {
      "number": "202402145909",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-02-14",
      "status_date": "2024-12-17",
      "estimated_cost": 31000,
      "revised_cost": 45082,
      "description": "replace (e) fire alarm system. install new alarm control unit, new wireless alarm radio communicator, 7 smoke detectors, 6 pull stations, 3 monitoring modules, 7 wall mount horn strobe and 30 sounders.",
      "source": "sf-building-permits"
    },
    {
      "number": "202311030081",
      "type": "otc alterations permit",
      "status": "cancelled",
      "filed": "2023-11-03",
      "status_date": "2024-10-01",
      "estimated_cost": 2000,
      "revised_cost": 2000,
      "description": "exploratory demolition prior to all work start. separate permit will follow for fire alarm system upgrade to comply with sffc 1103.7.6.1 and voluntary sprinkler system upgrade in garage and storage area basement.",
      "source": "sf-building-permits"
    },
    {
      "number": "201907105476",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-07-10",
      "status_date": "2019-08-07",
      "estimated_cost": 25000,
      "revised_cost": 38802,
      "description": "one unit: kitchen (10'x10') remodel, electrical/plumbing/cabinets/countertops/appliances; bathroom (10'x8') remodel, electrical/plumbing/cabinets/tiles. no structural work",
      "source": "sf-building-permits"
    },
    {
      "number": "201904026928",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-04-02",
      "status_date": "2019-05-09",
      "estimated_cost": 15000,
      "revised_cost": 30944,
      "description": "one unit: 8x8 kitchen remodeling with new cabinets, countertops, appliances, electrical and plumbing upgrade/no structural work 6x6 bathroom remodeling with new tiles, toilet, vanity, plumbing work and electrical work upgrade.",
      "source": "sf-building-permits"
    },
    {
      "number": "201808036445",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-08-03",
      "status_date": "2018-08-27",
      "estimated_cost": 7000,
      "revised_cost": 9000,
      "description": "residential fire sprinkler system - partial 14 sprinklers maher na",
      "source": "sf-building-permits"
    },
    {
      "number": "M930388",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-05-23",
      "status_date": "2018-05-23",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M891007",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-02-20",
      "status_date": "2018-02-20",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201706159411",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2017-06-15",
      "status_date": "2018-12-17",
      "estimated_cost": 20000,
      "revised_cost": 45000,
      "description": "add accessory dwelling unit in association with soft story upgrade appln #201601126931 per ord #162-16",
      "source": "sf-building-permits"
    },
    {
      "number": "201606240891",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2016-06-24",
      "status_date": "2016-06-24",
      "estimated_cost": 5000,
      "revised_cost": 15000,
      "description": "electrical upgrade during and after soft sotry work, new garage wiring for openers, exit, emergency and regular led lights, new outlets and new panel for garage, storage and laiundry. no building. only electrical work.",
      "source": "sf-building-permits"
    },
    {
      "number": "201601126931",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-01-12",
      "status_date": "2016-08-19",
      "estimated_cost": 148500,
      "revised_cost": 148500,
      "description": "soft storty retrofit to comply with sfbc chap 34b based on iebc appendix a4. n/a ordinance #155-13",
      "source": "sf-building-permits"
    },
    {
      "number": "201512084449",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-12-08",
      "status_date": "2016-02-22",
      "estimated_cost": 17500,
      "revised_cost": 27500,
      "description": "one unit. kitchen remodeling-no structural work, electrical and plumbing upgrade, new cabinets, counter tops, appliances, led light fixtures. bathroom upgrade-no demolition, replace toilet w/1.28 gallon. new vanity, tile over (e) walls, no eelctrical work, no rough plumbing.",
      "source": "sf-building-permits"
    },
    {
      "number": "201507232243",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-07-23",
      "status_date": "2015-08-21",
      "estimated_cost": 15000,
      "revised_cost": 17500,
      "description": "one unit: kitchen remodel: new cabinets, counter top, appliances, electrical, plumbin, title 24, lights. no structural work or removing walls. infield-close one kitchen door and window.",
      "source": "sf-building-permits"
    },
    {
      "number": "201402249162",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-02-24",
      "status_date": "2014-04-21",
      "estimated_cost": 10000,
      "revised_cost": 13789,
      "description": "one (1) kitchen remodeling, electrical and plumbing upgrade. no change of wall, windows and doors. compliance with maher ordinance # 155-13 does not apply.",
      "source": "sf-building-permits"
    },
    {
      "number": "200811176668",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-11-17",
      "status_date": "2009-05-07",
      "estimated_cost": 4000,
      "revised_cost": 4000,
      "description": "comply with nov 200881553-bid. dryrot repair per nov 200881553-bid at interior courtyard & existing entry way wall. approx 3' x 6'.",
      "source": "sf-building-permits"
    },
    {
      "number": "M135753",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2008-09-30",
      "status_date": "2008-09-30",
      "revised_cost": 1,
      "description": "street space only",
      "source": "sf-building-permits"
    },
    {
      "number": "9624151",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1996-12-17",
      "status_date": "1997-08-21",
      "estimated_cost": 18600,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "8807617",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1988-06-10",
      "status_date": "1988-12-22",
      "estimated_cost": 3000,
      "description": "replace wood windows, no structural",
      "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=3700",
      "retrieved": "2026-07-31"
    },
    {
      "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=3598009&$order=closed_roll_year%20DESC&$limit=1",
      "retrieved": "2026-07-31"
    },
    {
      "id": "sf-building-permits",
      "name": "SF Dept. of Building Inspection via DataSF",
      "query": "https://data.sfgov.org/resource/i98e-djp9.json?block=3598&lot=009",
      "retrieved": "2026-07-31"
    },
    {
      "id": "sf-planning",
      "name": "SF Planning Department — Historic Resource Status by Parcel via DataSF",
      "query": "https://data.sfgov.org/resource/3tsw-4idn.json?apn=3598009",
      "retrieved": "2026-07-31"
    }
  ]
}