{
  "address": "3725 20th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/20th-street/3725/",
  "apn": "3607071",
  "block": "3607",
  "lot": "071",
  "eas_baseid": "362291",
  "coordinates": {
    "lat": 37.758084,
    "lng": -122.424088
  },
  "parcel": {
    "year_built": 1895,
    "units": 1,
    "stories": 2,
    "rooms": 8,
    "bathrooms": 3,
    "bedrooms": 3,
    "lot_area_sqft": 3419,
    "building_area_sqft": 1872,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "0000 3725 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 359922,
    "assessed_improvement_value": 503517,
    "last_sale_date": "1988-06-07"
  },
  "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",
    "yearbuilt": "1895",
    "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": "201107150366",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2011-07-15",
      "status_date": "2011-08-04",
      "estimated_cost": 13600,
      "revised_cost": 13600,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200711309379",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2007-11-30",
      "status_date": "2008-05-30",
      "estimated_cost": 750,
      "revised_cost": 750,
      "description": "addition of skylight at rear of house in new laundry room on first floor.",
      "source": "sf-building-permits"
    },
    {
      "number": "M96584",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2007-11-26",
      "status_date": "2007-11-26",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "200612129652",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2006-12-12",
      "status_date": "2008-05-30",
      "estimated_cost": 125000,
      "revised_cost": 125000,
      "description": "remove (e) one story rear addition containing family room, laundry & replace with new one story rear addition containing new family room, new bathroom, new laundry & new home office.",
      "source": "sf-building-permits"
    },
    {
      "number": "200204174233",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-04-17",
      "status_date": "2002-04-25",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "renew 200109130355 and 9927344s build garage under house",
      "source": "sf-building-permits"
    },
    {
      "number": "200009130355",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-09-13",
      "status_date": "2001-01-13",
      "estimated_cost": 100,
      "revised_cost": 100,
      "description": "revise roof slab & beam per app #99273435",
      "source": "sf-building-permits"
    },
    {
      "number": "9927344S",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1999-12-31",
      "status_date": "2001-07-14",
      "estimated_cost": 30000,
      "revised_cost": 30000,
      "description": "install 20'x18' garage at street level",
      "source": "sf-building-permits"
    },
    {
      "number": "9000781",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1990-01-12",
      "status_date": "1990-03-12",
      "estimated_cost": 8300,
      "description": "reinforce (e) masonry foundation, tie sill to foundation",
      "source": "sf-building-permits"
    },
    {
      "number": "8615295",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "1986-12-03",
      "status_date": "1987-06-22",
      "estimated_cost": 3200,
      "description": "retaining wall - concrete",
      "source": "sf-building-permits"
    },
    {
      "number": "8310337",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1983-10-13",
      "status_date": "1983-12-12",
      "estimated_cost": 300,
      "description": "construct concrete platform at front yard",
      "source": "sf-building-permits"
    },
    {
      "number": "8310338",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1983-10-13",
      "status_date": "1984-02-15",
      "estimated_cost": 300,
      "description": "expand platform, place plywood sidding on front steps",
      "source": "sf-building-permits"
    },
    {
      "number": "8309412",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1983-09-21",
      "status_date": "1983-12-20",
      "estimated_cost": 2000,
      "description": "retainer wall to be built aprox 12 feet long 10\" wide 3ft",
      "source": "sf-building-permits"
    },
    {
      "number": "8300384",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1983-01-13",
      "status_date": "1983-10-06",
      "estimated_cost": 2000,
      "description": "reconstruct front steps",
      "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=3725",
      "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=3607071&$order=closed_roll_year%20DESC&$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=071",
      "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=3607071",
      "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(-122.42408768144838%2037.758084428522004)%27)",
      "retrieved": "2026-07-31"
    }
  ]
}