{
  "address": "4118 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/4118/",
  "apn": "2750017",
  "block": "2750",
  "lot": "017",
  "eas_baseid": "345456",
  "coordinates": {
    "lat": 37.756155,
    "lng": -122.437161
  },
  "parcel": {
    "year_built": 2022,
    "units": 2,
    "stories": 4,
    "rooms": 11,
    "bathrooms": 5,
    "bedrooms": 5,
    "lot_area_sqft": 2435,
    "building_area_sqft": 4436,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "NA",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "4118A4118 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1752254,
    "assessed_improvement_value": 1737625,
    "last_sale_date": "2018-01-10"
  },
  "historic_status": {
    "ceqa_status_code": "C",
    "ceqa_status_code_article_10_11": "C",
    "ceqa_status_label": "Not a historical resource",
    "reason": "Historic Resource Evaluation Response",
    "yearbuilt": "2022",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202210053804",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-10-05",
      "status_date": "2022-10-06",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "as-built revision to pa# 201802272279. to replace brick finish with stucco in street level of front facade and rear facade.",
      "source": "sf-building-permits"
    },
    {
      "number": "202112073879",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2021-12-07",
      "status_date": "2022-09-26",
      "estimated_cost": 4000,
      "revised_cost": 4000,
      "description": "installation of a new sprinkler monitoring system ref. sprinkler 202106031584",
      "source": "sf-building-permits"
    },
    {
      "number": "202106031584",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2021-06-03",
      "status_date": "2022-09-26",
      "estimated_cost": 25300,
      "revised_cost": 36000,
      "description": "installation of (46) fire sprinklers throughout the building according to app# 2020-0629-9315 per nfpa 13r & underground piping per nfpa 24 (trench, backfill & sidewalk repair by sepatate permit)",
      "source": "sf-building-permits"
    },
    {
      "number": "202006299315",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2020-06-29",
      "status_date": "2023-04-04",
      "estimated_cost": 300000,
      "revised_cost": 300000,
      "description": "revision to pa# 201802272279. expansion of sfh to 2 unit. add 3rd floor with living, dinning, kitchen for new 2nd unit per bid. new bpa can incorporate inspection & work under pa# 201802272279. plan abate dbi nov# 201919811 &nov# 201813931 / dcp2018-017368eng per dcp approval 2020-000215prj/cua",
      "source": "sf-building-permits"
    },
    {
      "number": "M1029529",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-01-18",
      "status_date": "2019-01-18",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201812269120",
      "type": "otc alterations permit",
      "status": "withdrawn",
      "filed": "2018-12-26",
      "status_date": "2019-04-09",
      "estimated_cost": 80000,
      "revised_cost": 0,
      "description": "add new skylight, remove interior bearing wall on 3rd fl. replace windows at back of house no work visible from street. upgrade kitchen , electrical & plumbing",
      "source": "sf-building-permits"
    },
    {
      "number": "M944947",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-06-28",
      "status_date": "2018-06-28",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201804267433",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "2018-04-26",
      "status_date": "2019-12-24",
      "estimated_cost": 65000,
      "description": "hold: project requires cu and var renovate facade: new bay window, new garage door, new windows & doors, new brick facade. infill existing lightwell against blank wall. renovate kitchen, bathroom, new sliding doors off back & replacement lot line window with new fire rated window.",
      "source": "sf-building-permits"
    },
    {
      "number": "201802272279",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2018-02-27",
      "status_date": "2022-10-26",
      "estimated_cost": 220000,
      "revised_cost": 310000,
      "description": "basement: excavate space to gain more ceiling height, infill under (e) floor above, reconfigure stair connection to 1st flr, new door opening to yard, new living room, bathroom, wetbar. 1st flr - reconfigure (e) spaces, add 2 new bedrms, 2 baths, laundry no facade work, no work visible from st",
      "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=4118",
      "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=2750017&$order=closed_roll_year%20DESC&$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=2750&lot=017",
      "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=2750017",
      "retrieved": "2026-07-28"
    }
  ]
}