{
  "address": "3553–3555 20th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/20th-street/3553/",
  "apn": "3609080",
  "block": "3609",
  "lot": "080",
  "eas_baseid": "362425",
  "coordinates": {
    "lat": 37.758359,
    "lng": -122.420204
  },
  "address_range": "3553–3555",
  "street_numbers_on_parcel": [
    "3553",
    "3555"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 2,
    "stories": 2,
    "rooms": 8,
    "bathrooms": 2,
    "lot_area_sqft": 1868,
    "building_area_sqft": 2028,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "NC-1",
    "supervisor_district": 9,
    "assessor_neighborhood": "Inner Mission",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "3555 3553 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 573531,
    "assessed_improvement_value": 382347,
    "last_sale_date": "2002-11-15"
  },
  "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": "M1191049",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2020-02-05",
      "status_date": "2020-02-05",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M1179067",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-12-30",
      "status_date": "2019-12-30",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201911217904",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-11-21",
      "status_date": "2020-09-03",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "structural revision to app#201906264434",
      "source": "sf-building-permits"
    },
    {
      "number": "M1142827",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-09-25",
      "status_date": "2019-09-25",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M1122787",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-08-12",
      "status_date": "2019-08-12",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201906264434",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-06-26",
      "status_date": "2020-07-23",
      "estimated_cost": 5000,
      "revised_cost": 18000,
      "description": "to legalize rear addittion adjacent to rear stairs; replace foundation at east wall at added laundry room. to conform to cc-7914 to supplement pa201903044274.",
      "source": "sf-building-permits"
    },
    {
      "number": "M1091487",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-06-06",
      "status_date": "2019-06-06",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201903205776",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-03-20",
      "status_date": "2020-09-03",
      "estimated_cost": 5000,
      "revised_cost": 75000,
      "description": "condo conversion report #cc-7914",
      "source": "sf-building-permits"
    },
    {
      "number": "201903044274",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-03-04",
      "status_date": "2019-05-09",
      "estimated_cost": 17000,
      "revised_cost": 17000,
      "description": "replace rear stairway and add 1 hr. wall at property line. n/a for maher.",
      "source": "sf-building-permits"
    },
    {
      "number": "M164044",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2009-05-15",
      "status_date": "2009-05-15",
      "revised_cost": 1,
      "description": "street space, sidewalk & mta permit.",
      "source": "sf-building-permits"
    },
    {
      "number": "9024760",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1990-12-03",
      "status_date": "1991-01-10",
      "estimated_cost": 5500,
      "description": "dry rot and replace bolt",
      "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=20TH&street_type=ST&address_number=3553",
      "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=3609080&$order=closed_roll_year%20DESC&$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=3609&lot=080",
      "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=3609080",
      "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(-122.42020449444443%2037.75835901516949)%27)",
      "retrieved": "2026-07-31"
    }
  ]
}