{
  "address": "1237 Potrero Avenue, San Francisco, CA 94110",
  "path": "/san-francisco/mission/potrero-avenue/1237/",
  "apn": "4264016",
  "block": "4264",
  "lot": "016",
  "eas_baseid": "370650",
  "coordinates": {
    "lat": 37.752489,
    "lng": -122.405934
  },
  "parcel": {
    "year_built": 1907,
    "units": 1,
    "stories": 2,
    "rooms": 10,
    "bathrooms": 2,
    "lot_area_sqft": 2478,
    "building_area_sqft": 1349,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 10,
    "assessor_neighborhood": "Inner Mission",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "0000 1237 POTRERO             AV0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 593790,
    "assessed_improvement_value": 395844,
    "last_sale_date": "2004-11-09"
  },
  "historic_status": {
    "ceqa_status_code": "B",
    "ceqa_status_code_article_10_11": "B",
    "ceqa_status_label": "Unevaluated",
    "reason": "No evaluation and 45 years or older",
    "yearbuilt": "1907",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "201612235807",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-12-23",
      "status_date": "2017-02-14",
      "estimated_cost": 3580,
      "revised_cost": 3580,
      "description": "replace 5 windows, not visible to street. no structural changes. max u-factor 0.32 vinyl frames.",
      "source": "sf-building-permits"
    },
    {
      "number": "201412304709",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-12-30",
      "status_date": "2015-07-30",
      "estimated_cost": 9840,
      "revised_cost": 9840,
      "description": "replacement (5) retrofit wood windows all double hung street facing and (3) vinyl facing rear. u factor <.32 no size change.",
      "source": "sf-building-permits"
    },
    {
      "number": "201002045921",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-02-04",
      "status_date": "2010-03-01",
      "estimated_cost": 3012,
      "revised_cost": 3012,
      "description": "replace 4 windows into (e) openings. visale from the street. no structural change. u factor 40 max. vinyl framed windows. no structural work.",
      "source": "sf-building-permits"
    },
    {
      "number": "200504119605",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2005-04-11",
      "status_date": "2006-11-20",
      "estimated_cost": 8880,
      "revised_cost": 8880,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9115241",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1991-08-22",
      "status_date": "1991-12-22",
      "estimated_cost": 1200,
      "description": "relocate non-bearing partition walls - express pc",
      "source": "sf-building-permits"
    },
    {
      "number": "9103370",
      "type": "additions alterations or repairs",
      "status": "withdrawn",
      "filed": "1991-03-06",
      "status_date": "1993-02-03",
      "estimated_cost": 50000,
      "description": "reinforce foundation or replace demo & reframe 3rd floor",
      "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=POTRERO&street_type=AVE&address_number=1237",
      "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=4264016&$order=closed_roll_year%20DESC&$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=4264&lot=016",
      "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=4264016",
      "retrieved": "2026-07-31"
    }
  ]
}