{
  "address": "3348–3350 21st Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/21st-street/3348/",
  "apn": "3608017",
  "block": "3608",
  "lot": "017",
  "eas_baseid": "362309",
  "coordinates": {
    "lat": 37.757082,
    "lng": -122.422224
  },
  "address_range": "3348–3350",
  "street_numbers_on_parcel": [
    "3348",
    "3350"
  ],
  "parcel": {
    "year_built": 1885,
    "units": 4,
    "stories": 3,
    "rooms": 18,
    "bathrooms": 4,
    "bedrooms": 8,
    "lot_area_sqft": 2875,
    "building_area_sqft": 5210,
    "lot_depth_ft": 15,
    "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": "3350 3348 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1210492,
    "assessed_improvement_value": 560097,
    "last_sale_date": "2008-10-10"
  },
  "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": "1885",
    "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": "201701116989",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2017-01-11",
      "status_date": "2017-04-10",
      "estimated_cost": 30000,
      "revised_cost": 30000,
      "description": "remodel (e) bathroom & (e) kitchen. like for like. no changes to wall locations. no new walls.",
      "source": "sf-building-permits"
    },
    {
      "number": "M712147",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2016-08-09",
      "status_date": "2016-08-09",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201602190046",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-02-19",
      "status_date": "2017-04-07",
      "estimated_cost": 80000,
      "revised_cost": 80000,
      "description": "compliance/voluntary for soft story retrofit per sfbc chapter 34b: 2012 iebc appendix a-4.",
      "source": "sf-building-permits"
    },
    {
      "number": "201301117748",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-01-11",
      "status_date": "2013-08-30",
      "estimated_cost": 15000,
      "revised_cost": 15000,
      "description": "repair dry-rotted floor joist & foundation. reference to pa#2013-01-08-7449.",
      "source": "sf-building-permits"
    },
    {
      "number": "201301087449",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-01-08",
      "status_date": "2013-08-30",
      "estimated_cost": 30000,
      "revised_cost": 30000,
      "description": "remodel (e) kitchen & bathroom on ground floor",
      "source": "sf-building-permits"
    },
    {
      "number": "201205140364",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-05-14",
      "status_date": "2012-05-21",
      "estimated_cost": 9480,
      "revised_cost": 9480,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200905279152",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2009-05-27",
      "status_date": "2009-09-18",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "work @ one unit only. kitchen remodel. no structural work. no work on walls / windows / doors under this permit. life safety under separte permit.",
      "source": "sf-building-permits"
    },
    {
      "number": "M30550",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2004-12-15",
      "status_date": "2004-12-15",
      "revised_cost": 0,
      "description": "street space",
      "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=3348",
      "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=3608017&$order=closed_roll_year%20DESC&$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=017",
      "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=3608017",
      "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(-122.42222444167415%2037.757081880701904)%27)",
      "retrieved": "2026-07-31"
    }
  ]
}