{
  "address": "4006–4008 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/4006/",
  "apn": "2751006I",
  "block": "2751",
  "lot": "006I",
  "eas_baseid": "345495",
  "coordinates": {
    "lat": 37.756231,
    "lng": -122.435907
  },
  "address_range": "4006–4008",
  "street_numbers_on_parcel": [
    "4006",
    "4008"
  ],
  "parcel": {
    "year_built": 1932,
    "units": 3,
    "stories": 1,
    "rooms": 9,
    "bathrooms": 3,
    "lot_area_sqft": 2250,
    "building_area_sqft": 2750,
    "lot_depth_ft": 90,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 4 units or less",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "4008 4006 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1550238,
    "assessed_improvement_value": 870518,
    "last_sale_date": "2019-10-18"
  },
  "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": "1932",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202507281758",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-07-28",
      "status_date": "2025-08-07",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "no actual work to be performed, permit to legalize previous permited work under pa202012040273 per planning enforcement case 2025-003963enf.",
      "source": "sf-building-permits"
    },
    {
      "number": "202402075473",
      "type": "otc alterations permit",
      "status": "filed",
      "filed": "2024-02-07",
      "status_date": "2024-02-07",
      "estimated_cost": 50000,
      "revised_cost": 50000,
      "description": "interior remodel of one unit: adding bedroom and bathroom (it replaces (e) utility room). upgrading 3 water heaters with tankless water heaters to be replaced on exterior west wall for all 3 units. fenestration of west exterior wall at bedroom conversion.",
      "source": "sf-building-permits"
    },
    {
      "number": "202106081890",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2021-06-08",
      "status_date": "2023-07-19",
      "estimated_cost": 6000,
      "revised_cost": 6000,
      "description": "remodel (e) laundry room, new plumbing, new electrical new water lines from water heater. work at garge level. no changes to layout of walls and opening.",
      "source": "sf-building-permits"
    },
    {
      "number": "202012040273",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-12-04",
      "status_date": "2021-02-22",
      "estimated_cost": 17000,
      "revised_cost": 17000,
      "description": "replacement windows - 17 windows in two units (5 visible from street) m<0.32, same openings & style",
      "source": "sf-building-permits"
    },
    {
      "number": "202010035816",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-10-03",
      "status_date": "2021-02-22",
      "estimated_cost": 10000,
      "revised_cost": 14000,
      "description": "one unit - bathroom remodel. new bathroom fixture & tile flooring; plumbing & electrical to be pulled separately",
      "source": "sf-building-permits"
    },
    {
      "number": "202010035820",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-10-03",
      "status_date": "2021-07-02",
      "estimated_cost": 45000,
      "revised_cost": 45000,
      "description": "one unit - remodel of(e) kitchen & bathroom and hardwod flooring to replace carpeting. plumbing & electrical to be pulled separately",
      "source": "sf-building-permits"
    },
    {
      "number": "202005297972",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-05-29",
      "status_date": "2021-08-16",
      "estimated_cost": 25000,
      "revised_cost": 25000,
      "description": "kitchen remodel (replacement of kitchen cabinets and counter tops)",
      "source": "sf-building-permits"
    },
    {
      "number": "202003126916",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-03-12",
      "status_date": "2020-09-03",
      "estimated_cost": 50750,
      "revised_cost": 50750,
      "description": "perform repairs as per termite report #84162 & 84162-s1 item # 2a,5e,5f",
      "source": "sf-building-permits"
    },
    {
      "number": "201603293356",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-03-29",
      "status_date": "2016-05-24",
      "estimated_cost": 8000,
      "revised_cost": 10000,
      "description": "one unit: remodel bathroom.",
      "source": "sf-building-permits"
    },
    {
      "number": "201503241733",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-03-24",
      "status_date": "2015-03-24",
      "estimated_cost": 8000,
      "revised_cost": 8000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "201103091687",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-03-09",
      "status_date": "2011-04-14",
      "estimated_cost": 2075,
      "revised_cost": 2075,
      "description": "install 4 vinyl windows in kind into existing frame. no change in size or lcoation. windows do not face the street. if applicable, bedroom windows comply with section cbc-1026 for rescue. all windows will be double pane and have a u-factor of 0.30. window is not rated.",
      "source": "sf-building-permits"
    },
    {
      "number": "200209196923",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-09-19",
      "status_date": "2002-10-10",
      "estimated_cost": 1350,
      "revised_cost": 1350,
      "description": "remedy housing inspection findings#200230778 shave door bottom,adjust door closer garbage can locati",
      "source": "sf-building-permits"
    },
    {
      "number": "8903318",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1989-03-01",
      "status_date": "1989-04-04",
      "estimated_cost": 810,
      "description": "install aluminum windows in existing frames",
      "source": "sf-building-permits"
    },
    {
      "number": "8210467",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1982-12-23",
      "status_date": "1986-10-16",
      "estimated_cost": 200,
      "description": "compliance to codes",
      "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=21ST&street_type=ST&address_number=4006",
      "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=2751006I&$order=closed_roll_year%20DESC&$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=2751&lot=006I",
      "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=2751006I",
      "retrieved": "2026-07-28"
    }
  ]
}