{
  "address": "3356–3358 21st Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/21st-street/3356/",
  "apn": "3608019",
  "block": "3608",
  "lot": "019",
  "eas_baseid": "362311",
  "coordinates": {
    "lat": 37.757071,
    "lng": -122.422397
  },
  "address_range": "3356–3358",
  "street_numbers_on_parcel": [
    "3356",
    "3358"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 2,
    "stories": 2,
    "rooms": 13,
    "bathrooms": 2,
    "lot_area_sqft": 2874,
    "building_area_sqft": 3640,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 9,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "3358 3356 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 461718,
    "assessed_improvement_value": 222314
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A*",
    "ceqa_status_label": "Historic resource",
    "reason": "Article 10 Historic District, California Register Historic District",
    "yearbuilt": "1900",
    "in_article_10_11_historic_district": true,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Liberty Hill Historic District",
    "california_register_status": "Eligible (not listed)",
    "national_register_status": "Not listed",
    "article_10_11_status": "Article 10 historic district",
    "local_landmark_protection": true,
    "period_of_significance": "1860s–1906",
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "202508012149",
      "type": "otc alterations permit",
      "status": "withdrawn",
      "filed": "2025-08-01",
      "status_date": "2025-10-24",
      "estimated_cost": 1000,
      "revised_cost": 0,
      "description": "to complete the two remainder items under nov 202418966. items #4 and #5. repair stairs in fire escape and replace broken windows at the rear exterior stairway",
      "source": "sf-building-permits"
    },
    {
      "number": "202403047026",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2024-03-04",
      "status_date": "2024-03-05",
      "estimated_cost": 16000,
      "revised_cost": 29000,
      "description": "work to remediate compliant 202302565 item# 2, repair damage basement ceiling with sheetrock and fire tape. replace broken window glass. repair rear stairs and landing (less than 50% replacement). 202418966 repair window glass item # 5.",
      "source": "sf-building-permits"
    },
    {
      "number": "202306099705",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-06-09",
      "status_date": "2023-07-19",
      "estimated_cost": 18000,
      "revised_cost": 18000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "201207094372",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-07-09",
      "status_date": "2012-08-13",
      "estimated_cost": 400,
      "revised_cost": 400,
      "description": "replace 6\" steps on rear of house less than 50%. to comply with complaint #201207941. not visible from street.",
      "source": "sf-building-permits"
    },
    {
      "number": "200305225330",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2003-05-22",
      "status_date": "2003-06-17",
      "estimated_cost": 1100,
      "revised_cost": 1100,
      "description": "repari rear stariway about 10 steps & wood in kind",
      "source": "sf-building-permits"
    },
    {
      "number": "9005717",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1990-03-26",
      "status_date": "1990-08-27",
      "estimated_cost": 3000,
      "description": "rerooing.",
      "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=3356",
      "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=3608019&$order=closed_roll_year%20DESC&$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=3608&lot=019",
      "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=3608019",
      "retrieved": "2026-07-31"
    },
    {
      "id": "sf-historic-districts",
      "name": "SF Planning Department — Historic Districts via DataSF",
      "query": "https://data.sfgov.org/resource/63x5-g3m4.json?$where=intersects(the_geom,%20%27POINT(-122.42239690274582%2037.75707149885172)%27)",
      "retrieved": "2026-07-31"
    },
    {
      "id": "architecture-preservation-professionals-biographies",
      "name": "San Francisco Planning Department, Architecture, Planning, & Preservation Professionals: A Collection of Biographies (volume G–I), citywide historic context statement, adopted November 17, 2021, updated December 30, 2025",
      "query": "https://citypln-m-extnl.sfgov.org/SharedLinks.aspx?accesskey=b4fed2f0ee80387415081f76f9f657d25c12a1398210899a92a9222f03506e7a&VaultGUID=A4A7DACD-B0DC-4322-BD29-F6F07103C6E0",
      "listing": "https://sfplanning.org/project/sf-histories-historic-context-statements#completed",
      "label": "Architecture, Planning & Preservation Professionals: A Collection of Biographies, adopted 2021",
      "retrieved": "2026-09-01"
    }
  ],
  "building": {
    "architect": "Charles I. Havens"
  },
  "historical_record": [
    {
      "date": "1900",
      "kind": "construction",
      "description": "Designed by architect Charles I. Havens, for twelve years City Architect of San Francisco.",
      "source": "architecture-preservation-professionals-biographies"
    }
  ]
}