{
  "address": "3352–3354 21st Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/21st-street/3352/",
  "apn": "3608018",
  "block": "3608",
  "lot": "018",
  "eas_baseid": "362310",
  "coordinates": {
    "lat": 37.757077,
    "lng": -122.422311
  },
  "address_range": "3352–3354",
  "street_numbers_on_parcel": [
    "3352",
    "3354"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 3,
    "stories": 2,
    "rooms": 20,
    "bathrooms": 5,
    "bedrooms": 6,
    "lot_area_sqft": 2875,
    "building_area_sqft": 4075,
    "basement_area_sqft": 875,
    "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": "3354 3352 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 382788,
    "assessed_improvement_value": 792194,
    "last_sale_date": "1988-01-07"
  },
  "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, Historic Survey Result",
    "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": "201510210347",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-10-21",
      "status_date": "2015-11-10",
      "estimated_cost": 9480,
      "revised_cost": 9480,
      "description": "r e r o o f i n g- in-kind roof replacement. remove existing roof material and apply 1 ply #30 lb asphalt felt underlayment and new landmark pro designer shingles. ordinary maintenance and repair per planning code section 1005(e)3. no certificate of appropriateness required. no change in roof form.",
      "source": "sf-building-permits"
    },
    {
      "number": "M230148",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2010-11-22",
      "status_date": "2010-11-22",
      "revised_cost": 1,
      "description": "street space and sidewalk repair",
      "source": "sf-building-permits"
    },
    {
      "number": "M202026",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2010-05-13",
      "status_date": "2010-05-13",
      "revised_cost": 0,
      "description": "request to verify/add address to block 3608 lot 018. currently the addresses are: #3352 - 21st street is for the middle level and #3354 - 21st street is for the upper level. propose to assign #3352a -21st street to be the address for the lowest level.",
      "source": "sf-building-permits"
    },
    {
      "number": "200911040594",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2009-11-04",
      "status_date": "2010-06-10",
      "estimated_cost": 500,
      "revised_cost": 500,
      "description": "to complete work and obtain final inspection for work approved under app #200608290833",
      "source": "sf-building-permits"
    },
    {
      "number": "M167145",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2009-06-08",
      "status_date": "2009-06-08",
      "revised_cost": 1,
      "description": "street space permit only.",
      "source": "sf-building-permits"
    },
    {
      "number": "M104945",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2008-01-29",
      "status_date": "2008-01-29",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "200608290833",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2006-08-29",
      "status_date": "2010-06-10",
      "estimated_cost": 395000,
      "revised_cost": 395000,
      "description": "rear yard & bsmt addition to (e) 2 dewlling unit house. addition of 1 new 1 bedroom/1 bath dwellling unit @ bsmt rear yard. add a new 2 car garage to (e) bsmt @ front of house. add 1 bedroom & 1 bathroom to @ (e) dwelling unit. the resulting building is 3 unit w/ 2-car garage.",
      "source": "sf-building-permits"
    },
    {
      "number": "200204083390",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-04-08",
      "status_date": "2002-04-11",
      "estimated_cost": 4000,
      "revised_cost": 4000,
      "description": "replace in kind dryrotted entry stairs. repair not to exceed 50% of stair structure",
      "source": "sf-building-permits"
    },
    {
      "number": "8718101",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1987-12-29",
      "status_date": "1988-03-30",
      "estimated_cost": 7500,
      "description": "pest control report",
      "source": "sf-building-permits"
    },
    {
      "number": "8411428",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1984-10-23",
      "status_date": "1985-08-06",
      "estimated_cost": 12000,
      "description": "remodel kitchen & baths/new elect.& replace sidewalk",
      "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=3352",
      "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=3608018&$order=closed_roll_year%20DESC&$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=018",
      "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=3608018",
      "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(-122.42231067214975%2037.75707668957946)%27)",
      "retrieved": "2026-07-31"
    },
    {
      "id": "loc-sf-call-1910-12-10",
      "name": "The San Francisco Call, 10 December 1910, p. 10",
      "query": "https://chroniclingamerica.loc.gov/lccn/sn85066387/1910-12-10/ed-1/seq-10/",
      "retrieved": "2026-09-23"
    }
  ],
  "historical_record": [
    {
      "date": "1910-12-10",
      "kind": "sale",
      "description": "The buildings at 3352-3354 21st Street were exchanged for lots on Folsom south of Precita.",
      "source": "loc-sf-call-1910-12-10"
    }
  ]
}