{
  "address": "3503–3505 23rd Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/23rd-street/3503/",
  "apn": "3646001",
  "block": "3646",
  "lot": "001",
  "eas_baseid": "364229",
  "coordinates": {
    "lat": 37.753453,
    "lng": -122.42167
  },
  "address_range": "3503–3505",
  "street_numbers_on_parcel": [
    "3503",
    "3505"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 2,
    "stories": 3,
    "rooms": 16,
    "bathrooms": 4,
    "bedrooms": 8,
    "lot_area_sqft": 2636.88,
    "building_area_sqft": 3280,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 9,
    "assessor_neighborhood": "Noe Valley",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "3505 3503 23RD                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2564598,
    "assessed_improvement_value": 1099112,
    "last_sale_date": "2020-04-23"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "National Register Historic District, California Register Historic District, Historic Survey Result",
    "yearbuilt": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Horner's Addition East Historic District",
    "california_register_status": "Eligible (not listed)",
    "national_register_status": "Eligible (not listed)",
    "article_10_11_status": "No local landmark protection",
    "local_landmark_protection": false,
    "period_of_significance": "1865–1905",
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "202209222971",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-09-22",
      "status_date": "2022-11-15",
      "estimated_cost": 8000,
      "revised_cost": 3000,
      "description": "interior work only. remove sheetrock at entry of both addresses & replace with type x drywall.",
      "source": "sf-building-permits"
    },
    {
      "number": "M581647",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-04-28",
      "status_date": "2015-04-28",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "201503050012",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-03-05",
      "status_date": "2015-03-05",
      "estimated_cost": 6000,
      "revised_cost": 6000,
      "description": "revision to 201409095913. replace 3 gas heaters leaking with a forced air furnace",
      "source": "sf-building-permits"
    },
    {
      "number": "M553847",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-01-26",
      "status_date": "2015-01-26",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201409095913",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-09-09",
      "status_date": "2015-05-20",
      "estimated_cost": 35000,
      "revised_cost": 35000,
      "description": "one kitchen and one bathroom remodel. non structural",
      "source": "sf-building-permits"
    },
    {
      "number": "200809121509",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-09-12",
      "status_date": "2008-10-15",
      "estimated_cost": 900,
      "revised_cost": 900,
      "description": "replace existing dryrot stairs in kind. new stringer and tread/risers, new rat slab to remove wood. less than 50% repair on stairway. no change to door window or exiting. if work excess 50% plans will be required.",
      "source": "sf-building-permits"
    },
    {
      "number": "200806164466",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2008-06-16",
      "status_date": "2008-06-16",
      "estimated_cost": 17000,
      "revised_cost": 17000,
      "description": "reroofing.",
      "source": "sf-building-permits"
    },
    {
      "number": "200408050751",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2004-08-05",
      "status_date": "2004-11-30",
      "estimated_cost": 6000,
      "revised_cost": 6000,
      "description": "replace centerline brick foorints with concrete footings w/ stud wall support at crawl space......",
      "source": "sf-building-permits"
    },
    {
      "number": "M27609",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2004-05-24",
      "status_date": "2004-05-24",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "200405204367",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2004-05-20",
      "status_date": "2004-11-30",
      "estimated_cost": 55000,
      "revised_cost": 55000,
      "description": "remodel kitchen,2 bathrooms and laundry room. new counters, cabinets, fixtures, tile sheetrock, ligh",
      "source": "sf-building-permits"
    },
    {
      "number": "200003275510",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2000-03-27",
      "status_date": "2000-05-08",
      "estimated_cost": 3000,
      "revised_cost": 3000,
      "description": "replace 1 stairs as per koefoed scan dated 3/25/00.",
      "source": "sf-building-permits"
    },
    {
      "number": "20000128537",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-01-28",
      "status_date": "2000-09-26",
      "revised_cost": 2100,
      "description": "cripple wall strengthening bolts plywood panel bracing",
      "source": "sf-building-permits"
    },
    {
      "number": "8906928",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1989-04-26",
      "status_date": "1989-06-27",
      "estimated_cost": 2500,
      "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=23RD&street_type=ST&address_number=3503",
      "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=3646001&$order=closed_roll_year%20DESC&$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=3646&lot=001",
      "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=3646001",
      "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(-122.42167028336173%2037.75345250936995)%27)",
      "retrieved": "2026-07-31"
    }
  ]
}