{
  "address": "3701–3703 20th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/20th-street/3701/",
  "apn": "3607001",
  "block": "3607",
  "lot": "001",
  "eas_baseid": "362218",
  "coordinates": {
    "lat": 37.758249,
    "lng": -122.423706
  },
  "address_range": "3701–3703",
  "street_numbers_on_parcel": [
    "3701",
    "3703"
  ],
  "also_addressed": [
    "800 GUERRERO ST"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 5,
    "stories": 2,
    "rooms": 10,
    "bathrooms": 5,
    "lot_area_sqft": 3009,
    "building_area_sqft": 3242,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 5 to 14 Units",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "3703 3701 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 87763,
    "assessed_improvement_value": 40166
  },
  "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": "M291092",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2011-12-02",
      "status_date": "2011-12-02",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "200610104455",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2006-10-10",
      "status_date": "2006-10-10",
      "estimated_cost": 11880,
      "revised_cost": 11880,
      "description": "reroofing.",
      "source": "sf-building-permits"
    },
    {
      "number": "9801273",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1998-01-23",
      "status_date": "1998-12-24",
      "estimated_cost": 7000,
      "description": "horizontal addition",
      "source": "sf-building-permits"
    },
    {
      "number": "8209945",
      "type": "sign - erect",
      "status": "complete",
      "filed": "1982-12-06",
      "status_date": "1983-03-04",
      "estimated_cost": 900,
      "source": "sf-building-permits"
    },
    {
      "number": "8209946",
      "type": "sign - erect",
      "status": "complete",
      "filed": "1982-12-06",
      "status_date": "1983-03-04",
      "estimated_cost": 900,
      "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=3701",
      "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=3607001&$order=closed_roll_year%20DESC&$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=3607&lot=001",
      "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=3607001",
      "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(-122.42370597209319%2037.75824949653226)%27)",
      "retrieved": "2026-07-31"
    }
  ]
}