{
  "address": "523–527 Guerrero Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/guerrero-street/523/",
  "apn": "3577033",
  "block": "3577",
  "lot": "033",
  "eas_baseid": "360402",
  "coordinates": {
    "lat": 37.762714,
    "lng": -122.423605
  },
  "address_range": "523–527",
  "street_numbers_on_parcel": [
    "523",
    "525",
    "527"
  ],
  "parcel": {
    "year_built": 1908,
    "units": 3,
    "stories": 3,
    "rooms": 18,
    "bathrooms": 4,
    "bedrooms": 7,
    "lot_area_sqft": 2247,
    "building_area_sqft": 4350,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RM-2",
    "supervisor_district": 9,
    "assessor_neighborhood": "Mission Dolores",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "0527 0523 GUERRERO            ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1143006,
    "assessed_improvement_value": 541058,
    "last_sale_date": "2011-11-23"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "Historic Survey Result",
    "yearbuilt": "1908",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201708084177",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2017-08-08",
      "status_date": "2017-08-08",
      "estimated_cost": 5000,
      "revised_cost": 35000,
      "description": "remodel inside of apartment by adding a toilet and converting one toilet with shower. replacing a door & replacing with wall. kitchen remodel w/upgraded appliances, countertops and cabinets.",
      "source": "sf-building-permits"
    },
    {
      "number": "201604195112",
      "type": "otc alterations permit",
      "status": "cancelled",
      "filed": "2016-04-19",
      "status_date": "2026-01-09",
      "estimated_cost": 75000,
      "revised_cost": 90000,
      "description": "voluntary seismic retrofit, foundation upgrades, minor structural modification at ground floor, and replacement of failing site wall.",
      "source": "sf-building-permits"
    },
    {
      "number": "201604084269",
      "type": "additions alterations or repairs",
      "status": "withdrawn",
      "filed": "2016-04-08",
      "status_date": "2016-04-19",
      "estimated_cost": 50000,
      "description": "conversion of ground floor storage to studio living unit per ordinance 30-15. voluntary seismic upgrade with permit 201603182429",
      "source": "sf-building-permits"
    },
    {
      "number": "201603182429",
      "type": "additions alterations or repairs",
      "status": "withdrawn",
      "filed": "2016-03-18",
      "status_date": "2016-04-19",
      "estimated_cost": 15000,
      "description": "soft story retrofit per sfbc chapter 34b engineering critaria per other rational design. voluntary seismic retrofit per ab-094",
      "source": "sf-building-permits"
    },
    {
      "number": "201405024744",
      "type": "otc alterations permit",
      "status": "cancelled",
      "filed": "2014-05-02",
      "status_date": "2015-12-10",
      "estimated_cost": 6000,
      "revised_cost": 12000,
      "description": "voluntary structural strengthening of lower story.",
      "source": "sf-building-permits"
    },
    {
      "number": "201211305246",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-11-30",
      "status_date": "2014-03-10",
      "estimated_cost": 6000,
      "revised_cost": 9000,
      "description": "remodel bathrooms. add 1 shower & relocate toilet. remove a non-load bearing wall between bath & toilets on top unit.",
      "source": "sf-building-permits"
    },
    {
      "number": "201210162122",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-10-16",
      "status_date": "2014-03-10",
      "estimated_cost": 6000,
      "revised_cost": 6000,
      "description": "remove old kitchen cabinets and replace. just top unit.",
      "source": "sf-building-permits"
    },
    {
      "number": "M259887",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2011-05-09",
      "status_date": "2011-05-09",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "M118949",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2008-05-09",
      "status_date": "2008-05-09",
      "revised_cost": 1,
      "description": "street space permit only.",
      "source": "sf-building-permits"
    },
    {
      "number": "200804048912",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-04-04",
      "status_date": "2008-07-03",
      "estimated_cost": 1500,
      "revised_cost": 1500,
      "description": "repair (e) wood stair @ rear, less than 50% of structure as per nov#200848348. no change to window or doors.",
      "source": "sf-building-permits"
    },
    {
      "number": "9615578",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1996-08-21",
      "status_date": "1997-01-31",
      "estimated_cost": 10400,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "8411006",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1984-10-11",
      "status_date": "1984-11-29",
      "estimated_cost": 500,
      "description": "repair rear stairs at landing & misc patch & renail",
      "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=GUERRERO&street_type=ST&address_number=523",
      "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=3577033&$order=closed_roll_year%20DESC&$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=3577&lot=033",
      "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=3577033",
      "retrieved": "2026-07-31"
    }
  ]
}