{
  "address": "3561–3565 20th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/20th-street/3561/",
  "apn": "3609078",
  "block": "3609",
  "lot": "078",
  "eas_baseid": "362423",
  "coordinates": {
    "lat": 37.758451,
    "lng": -122.42037
  },
  "address_range": "3561–3565",
  "street_numbers_on_parcel": [
    "3561",
    "3565"
  ],
  "also_addressed": [
    "313 LEXINGTON ST"
  ],
  "parcel": {
    "year_built": 1880,
    "units": 4,
    "stories": 2,
    "rooms": 13,
    "bathrooms": 4,
    "bedrooms": 4,
    "lot_area_sqft": 2082.5,
    "building_area_sqft": 4064,
    "basement_area_sqft": 1404,
    "lot_depth_ft": 85,
    "use": "Multi-Family Residential",
    "property_class": "Flat & Store 4 units or less",
    "construction_type_code": "D",
    "zoning": "NC-1",
    "supervisor_district": 9,
    "assessor_neighborhood": "Inner Mission",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "3565 3561 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 558757,
    "assessed_improvement_value": 385232,
    "last_sale_date": "2003-09-17"
  },
  "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": "1880",
    "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": "202006088248",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-06-08",
      "status_date": "2021-07-12",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa #202002053622: add 1 additional sprinkler to fire sprinkler system.",
      "source": "sf-building-permits"
    },
    {
      "number": "202002053622",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-02-05",
      "status_date": "2021-08-24",
      "estimated_cost": 4600,
      "revised_cost": 4600,
      "description": "revision to pa #2019-1018-4945: from nfpa 13d to full 13 calcs updated. added fdc and upsized underground. installation of (n) fire sprinkler system nfpa 13.",
      "source": "sf-building-permits"
    },
    {
      "number": "202001212419",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-01-21",
      "status_date": "2021-01-14",
      "estimated_cost": 4600,
      "revised_cost": 12000,
      "description": "installation of new underground system to feed fire sprinkler system. approved overhead fire plan (201910184945)",
      "source": "sf-building-permits"
    },
    {
      "number": "201910316107",
      "type": "additions alterations or repairs",
      "status": "issued",
      "filed": "2019-10-31",
      "status_date": "2020-06-08",
      "estimated_cost": 2000,
      "revised_cost": 3000,
      "description": "replacing (2) (e) windows in kind with all wood windows w/integrated ogees w/in (e) openings. replacing (e) front door with (n) wood paneled door in same location. adding (2) (n) skylights.",
      "source": "sf-building-permits"
    },
    {
      "number": "201910184945",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-10-18",
      "status_date": "2021-08-24",
      "estimated_cost": 4600,
      "revised_cost": 4600,
      "description": "installation of (n) fire sprinkler system. nfpa 13d",
      "source": "sf-building-permits"
    },
    {
      "number": "201909171844",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-09-17",
      "status_date": "2021-10-29",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa #201711164189 and #201906284677. structural revision.",
      "source": "sf-building-permits"
    },
    {
      "number": "M1125707",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-08-19",
      "status_date": "2019-08-19",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201906284677",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2019-06-28",
      "status_date": "2021-10-29",
      "estimated_cost": 20000,
      "revised_cost": 25000,
      "description": "revision to application #201711164189. replace foundation.",
      "source": "sf-building-permits"
    },
    {
      "number": "201711164189",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2017-11-16",
      "status_date": "2021-10-29",
      "estimated_cost": 12850,
      "revised_cost": 12850,
      "description": "legalization of (e) unit built without a permit. ordinance #43-14.",
      "source": "sf-building-permits"
    },
    {
      "number": "201202103972",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2012-02-10",
      "status_date": "2013-03-13",
      "estimated_cost": 30000,
      "revised_cost": 75000,
      "description": "remodel(e)grnd fl retail space to accomodate cafe w/seating. replace & enlarge(e)street-front windows w/(n)sliding windows; replace(e)entry w/(n) door to match(n)windows; add 1(n) casement window to match(e)casement window; install ada compliant restroom; modify side entry to allow wheelchair access",
      "source": "sf-building-permits"
    },
    {
      "number": "M186299",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2009-12-15",
      "status_date": "2009-12-15",
      "revised_cost": 1,
      "description": "street space and sidewalk repair",
      "source": "sf-building-permits"
    },
    {
      "number": "M28418",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2004-07-21",
      "status_date": "2004-07-21",
      "revised_cost": 0,
      "description": "street space and sidewalk",
      "source": "sf-building-permits"
    },
    {
      "number": "200402065768",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2004-02-06",
      "status_date": "2004-07-08",
      "estimated_cost": 4029,
      "revised_cost": 4029,
      "description": "5/8\" type drywall, insulation in unit's \"area of work only\" 666 sqf of cieling. 240 sqf of west wall",
      "source": "sf-building-permits"
    },
    {
      "number": "200401164213",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2004-01-16",
      "status_date": "2004-01-16",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "correct occupancy on 200312172509.no change to scope of work.install steel beam&2 concrete beams.",
      "source": "sf-building-permits"
    },
    {
      "number": "200312172509",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2003-12-17",
      "status_date": "2003-12-17",
      "estimated_cost": 18000,
      "revised_cost": 18000,
      "description": "install steel beam and concrete grade beam",
      "source": "sf-building-permits"
    },
    {
      "number": "8206358",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1982-08-04",
      "status_date": "1983-03-04",
      "estimated_cost": 1500,
      "description": "bldg use: apts",
      "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=3561",
      "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=3609078&$order=closed_roll_year%20DESC&$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=078",
      "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=3609078",
      "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(-122.42037029635651%2037.75845106022356)%27)",
      "retrieved": "2026-07-31"
    }
  ]
}