{
  "address": "2720 20th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/20th-street/2720/",
  "apn": "4079015",
  "block": "4079",
  "lot": "015",
  "eas_baseid": "368199",
  "coordinates": {
    "lat": 37.759487,
    "lng": -122.408486
  },
  "parcel": {
    "year_built": 1900,
    "units": 1,
    "stories": 2,
    "rooms": 6,
    "bathrooms": 3,
    "lot_area_sqft": 2300,
    "building_area_sqft": 1790,
    "lot_depth_ft": 92,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 9,
    "assessor_neighborhood": "Inner Mission",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "0000 2720 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1680000,
    "assessed_improvement_value": 720000,
    "last_sale_date": "2024-08-27"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District, Historic Survey Result",
    "yearbuilt": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Gottlieb Knopf Block Historic District",
    "california_register_status": "Eligible (not listed)",
    "national_register_status": "Not listed",
    "article_10_11_status": "No local landmark protection",
    "local_landmark_protection": false,
    "period_of_significance": "1889–1892, 1920–1940",
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "202407166534",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-07-16",
      "status_date": "2024-08-21",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "rev 202306291124- interior layout changes for bedrooms, bathrooms, closets. change non street visible windows to aluminum. electrical meter to be relocated to front facade per pg&e standards. expanding sunking patio by 10sf",
      "source": "sf-building-permits"
    },
    {
      "number": "202405172342",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-05-17",
      "status_date": "2024-07-10",
      "estimated_cost": 18000,
      "revised_cost": 18000,
      "description": "replace existing stucco / waterproofing membrane of front facade in-kind (approx 300 sqft) repair diagonal wall sheathing as required.",
      "source": "sf-building-permits"
    },
    {
      "number": "202312011735",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-12-01",
      "status_date": "2024-07-30",
      "estimated_cost": 8000,
      "revised_cost": 8000,
      "description": "(1) casement window with diamond lites wood in wood out in kind. (1) double hung window wood in wood out in kind. (3) round top casements wood in wood out in kind. all street facing.",
      "source": "sf-building-permits"
    },
    {
      "number": "202306301268",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-06-30",
      "status_date": "2024-07-10",
      "estimated_cost": 3000,
      "revised_cost": 5000,
      "description": "replace/widen (e) 7'-6\" wood carriage garage door w/new 8'-6\" wood roll-up door, no structural work required. ref bpa#202306291124 for structural upgrade/remodel",
      "source": "sf-building-permits"
    },
    {
      "number": "202306291124",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-06-29",
      "status_date": "2024-08-21",
      "estimated_cost": 211000,
      "revised_cost": 211000,
      "description": "1/f: add habitable space at rear garage (2 bed & 2 baths), excavate 18-24in & replace (e) brick foundations,upgrade internal stair. 2/f: kitchen/bathroom remodel, add bed/bath.",
      "source": "sf-building-permits"
    },
    {
      "number": "200608099015",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2006-08-09",
      "status_date": "2006-08-11",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "reroofing",
      "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=2720",
      "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=4079015&$order=closed_roll_year%20DESC&$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=4079&lot=015",
      "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=4079015",
      "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(-122.4084860656311%2037.75948737532614)%27)",
      "retrieved": "2026-07-31"
    }
  ]
}