{
  "address": "4109 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/4109/",
  "apn": "2768001D",
  "block": "2768",
  "lot": "001D",
  "eas_baseid": "345809",
  "coordinates": {
    "lat": 37.755757,
    "lng": -122.437243
  },
  "parcel": {
    "year_built": 1917,
    "units": 1,
    "stories": 2,
    "rooms": 8,
    "bathrooms": 2,
    "bedrooms": 3,
    "lot_area_sqft": 1389,
    "building_area_sqft": 1864,
    "basement_area_sqft": 144,
    "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": "Noe Valley",
    "property_location_raw": "0000 4109 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 58012,
    "assessed_improvement_value": 161855
  },
  "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": "1917",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201005172616",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-05-17",
      "status_date": "2010-05-24",
      "estimated_cost": 6170,
      "revised_cost": 6170,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200906090053",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2009-06-09",
      "status_date": "2009-07-01",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to appl #200905188563 - new partition wall @ storage room/hallway is not req'd to be 1-hr constr, change s.c. door to pocket door. wall btwn garage & storage remains 1-hr.",
      "source": "sf-building-permits"
    },
    {
      "number": "200905188563",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2009-05-18",
      "status_date": "2009-07-01",
      "estimated_cost": 8000,
      "revised_cost": 8000,
      "description": "relocate extg garage door opening closer to front of bldg. replace door with carriage style sectional door, construct storage room at rear of garage",
      "source": "sf-building-permits"
    },
    {
      "number": "200708301342",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2007-08-30",
      "status_date": "2008-01-09",
      "estimated_cost": 30000,
      "revised_cost": 30000,
      "description": "remove & replace kitchen cabinets, all fixtures, lighting to comply with title 24 requirements. enlarge opening to dining room with related structural work @ garage below, replace wd. paneling @ dining room with drywall.",
      "source": "sf-building-permits"
    },
    {
      "number": "200104277861",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2001-04-27",
      "status_date": "2002-12-26",
      "estimated_cost": 22000,
      "revised_cost": 22000,
      "description": "remodel 2nd fl barhrm and add bathrm in garage",
      "source": "sf-building-permits"
    },
    {
      "number": "9517308",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1995-10-16",
      "status_date": "1995-12-13",
      "estimated_cost": 800,
      "description": "revise part of 9500204 for retaining adjacent grade",
      "source": "sf-building-permits"
    },
    {
      "number": "9500204S",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1995-01-06",
      "status_date": "1995-12-13",
      "estimated_cost": 15000,
      "description": "horizontal",
      "source": "sf-building-permits"
    },
    {
      "number": "8901079",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1989-01-23",
      "status_date": "1989-06-16",
      "estimated_cost": 2000,
      "description": "replace plaster w/5/8\" type x typ. bd. @ interior stairway",
      "source": "sf-building-permits"
    },
    {
      "number": "8815539",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1988-10-11",
      "status_date": "1989-01-30",
      "estimated_cost": 3000,
      "description": "reroofing",
      "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=4109",
      "retrieved": "2026-10-24"
    },
    {
      "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=2768001D&$order=closed_roll_year%20DESC&$limit=1",
      "retrieved": "2026-10-24"
    },
    {
      "id": "sf-building-permits",
      "name": "SF Dept. of Building Inspection via DataSF",
      "query": "https://data.sfgov.org/resource/i98e-djp9.json?block=2768&lot=001D",
      "retrieved": "2026-10-24"
    },
    {
      "id": "sf-planning",
      "name": "SF Planning Department — Historic Resource Status by Parcel via DataSF",
      "query": "https://data.sfgov.org/resource/3tsw-4idn.json?apn=2768001D",
      "retrieved": "2026-10-24"
    },
    {
      "id": "sf-planning-commission-minutes-1995-03-02",
      "name": "San Francisco City Planning Commission, minutes of the meeting of 2 March 1995",
      "label": "San Francisco City Planning Commission minutes, San Francisco Public Library (Internet Archive)",
      "query": "https://archive.org/details/41minutesofsanfran1995san/page/n50/mode/1up",
      "retrieved": "2026-10-24"
    }
  ],
  "historical_record": [
    {
      "date": "1995-03-02",
      "kind": "planning decision",
      "description": "With no opposition filed, the City Planning Commission approved, 4-0, a one-storey rear addition with a roof deck.",
      "source": "sf-planning-commission-minutes-1995-03-02"
    }
  ]
}