{
  "address": "31 Walter Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/walter-street/31/",
  "apn": "3538085",
  "block": "3538",
  "lot": "085",
  "eas_baseid": "358643",
  "coordinates": {
    "lat": 37.768672,
    "lng": -122.432131
  },
  "parcel": {
    "year_built": 1900,
    "units": 1,
    "stories": 1,
    "rooms": 9,
    "bathrooms": 3,
    "bedrooms": 4,
    "lot_area_sqft": 2413,
    "building_area_sqft": 1283,
    "basement_area_sqft": 549,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Duboce Triangle",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 0031 WALTER              ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 700264,
    "assessed_improvement_value": 784321,
    "last_sale_date": "2009-11-03"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District, Historic Survey Result",
    "yearbuilt": "1900",
    "survey_name": "31 Walter St",
    "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": "202512081202",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-12-08",
      "status_date": "2025-12-16",
      "estimated_cost": 22989,
      "revised_cost": 22989,
      "description": "reroofing no hot works",
      "source": "sf-building-permits"
    },
    {
      "number": "202305248491",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-05-24",
      "status_date": "2024-01-11",
      "estimated_cost": 40000,
      "revised_cost": 40000,
      "description": "water damange restoration of interior to include kitchen renovation, replacement of engineering wood flooring, drywall patching at 2/f, drywall replacement on 1/f. repair in kind and kitchen remodel.",
      "source": "sf-building-permits"
    },
    {
      "number": "M519247",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2014-09-19",
      "status_date": "2014-09-19",
      "revised_cost": 1,
      "description": "street space & sidewalk",
      "source": "sf-building-permits"
    },
    {
      "number": "201403281986",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-03-28",
      "status_date": "2014-03-28",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to 201012076255. change of use of room, bedroom # 3 to become home theater",
      "source": "sf-building-permits"
    },
    {
      "number": "M403228",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-06-21",
      "status_date": "2013-06-21",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M315107",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-04-18",
      "status_date": "2012-04-18",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "M287327",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2011-11-02",
      "status_date": "2011-11-02",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201012076255",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2010-12-07",
      "status_date": "2014-03-28",
      "estimated_cost": 80000,
      "revised_cost": 280000,
      "description": "extend building towards rear , add a total of 375 s.f of living space and a deck of 108 s.f. new electrical and new plumbing for kitchen, laudry and 3 bathrooms, reduce driveway slope.",
      "source": "sf-building-permits"
    },
    {
      "number": "201005253200",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2010-05-25",
      "status_date": "2014-03-28",
      "estimated_cost": 38000,
      "revised_cost": 38000,
      "description": "lower floor foundation replacement in garage area only. no change to building area or exterior proposed. no change to existing use.",
      "source": "sf-building-permits"
    },
    {
      "number": "200506205449",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2005-06-20",
      "status_date": "2005-06-20",
      "estimated_cost": 17319,
      "revised_cost": 17319,
      "description": "reroofing",
      "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=31",
      "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=3538085&$order=closed_roll_year%20DESC&$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=085",
      "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=3538085",
      "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(-122.43213138164053%2037.768672244726545)%27)",
      "retrieved": "2026-07-28"
    }
  ]
}