{
  "address": "42 Walter Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/walter-street/42/",
  "apn": "3538065",
  "block": "3538",
  "lot": "065",
  "eas_baseid": "358626",
  "coordinates": {
    "lat": 37.768422,
    "lng": -122.432663
  },
  "parcel": {
    "year_built": 1900,
    "units": 1,
    "stories": 2,
    "rooms": 8,
    "bathrooms": 1,
    "lot_area_sqft": 2495,
    "building_area_sqft": 1756,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 8,
    "assessor_neighborhood": "Duboce Triangle",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 0042 WALTER              ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2416956,
    "assessed_improvement_value": 790660,
    "last_sale_date": "2019-12-03"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District, Historic Resource Evaluation Response, Historic Survey Result",
    "yearbuilt": "1900",
    "survey_name": "42 Walter Street",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Duboce Triangle 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": "ca 1870–ca 1920",
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "202402216277",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-02-21",
      "status_date": "2024-02-29",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa# 202006239023. remove 36\" fence along sidewalk.",
      "source": "sf-building-permits"
    },
    {
      "number": "202311070338",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-11-07",
      "status_date": "2025-03-21",
      "estimated_cost": 3000,
      "revised_cost": 13579,
      "description": "sprinkler flow monitoring. refe fire sprinkler 202305238333.",
      "source": "sf-building-permits"
    },
    {
      "number": "202305238333",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-05-23",
      "status_date": "2023-12-26",
      "estimated_cost": 63000,
      "revised_cost": 63000,
      "description": "f/s system - (75) sprinklers, 2\" dedicated fire service - 24'-9\". ref bpa202006239023",
      "source": "sf-building-permits"
    },
    {
      "number": "202205043519",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-05-04",
      "status_date": "2023-12-26",
      "estimated_cost": 40000,
      "revised_cost": 41667,
      "description": "ref permit 202006239023. residential fire sprinkler system - 75 sprinklers. new 2\" fire service - 20 ft.",
      "source": "sf-building-permits"
    },
    {
      "number": "202203230694",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-03-23",
      "status_date": "2024-02-29",
      "estimated_cost": 3500,
      "revised_cost": 10000,
      "description": "add wet bar to basement. revise plumbing locationcs with bathroom at level 3. rev to pa202006239023. rectify story count in pts existing three story change to three story with a basement.",
      "source": "sf-building-permits"
    },
    {
      "number": "202108267219",
      "type": "otc alterations permit",
      "status": "withdrawn",
      "filed": "2021-08-26",
      "status_date": "2021-09-08",
      "estimated_cost": 10000,
      "revised_cost": 0,
      "description": "interior demolition and temporary shoring",
      "source": "sf-building-permits"
    },
    {
      "number": "202006239023",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2020-06-23",
      "status_date": "2024-02-29",
      "estimated_cost": 450000,
      "revised_cost": 700000,
      "description": "4 vertical and horizontal addition at rear, full renovation of interior.",
      "source": "sf-building-permits"
    },
    {
      "number": "M1105527",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-07-08",
      "status_date": "2019-07-08",
      "revised_cost": 1,
      "description": "street space only",
      "source": "sf-building-permits"
    },
    {
      "number": "200404090880",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2004-04-09",
      "status_date": "2006-12-14",
      "estimated_cost": 7000,
      "revised_cost": 7000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200002222478",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2000-02-22",
      "status_date": "2002-03-06",
      "revised_cost": 10000,
      "description": "remove and replace 30lf of brick foundation with code compliance footing & fndtn",
      "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=WALTER&street_type=ST&address_number=42",
      "retrieved": "2026-07-28"
    },
    {
      "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=3538065&$order=closed_roll_year%20DESC&$limit=1",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-building-permits",
      "name": "SF Dept. of Building Inspection via DataSF",
      "query": "https://data.sfgov.org/resource/i98e-djp9.json?block=3538&lot=065",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-planning",
      "name": "SF Planning Department — Historic Resource Status by Parcel via DataSF",
      "query": "https://data.sfgov.org/resource/3tsw-4idn.json?apn=3538065",
      "retrieved": "2026-07-28"
    },
    {
      "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(-122.4326625558481%2037.76842232925438)%27)",
      "retrieved": "2026-07-28"
    }
  ]
}