{
  "address": "4070 23rd Street, San Francisco, CA 94114",
  "path": "/san-francisco/mission/23rd-street/4070/",
  "apn": "3624020",
  "block": "3624",
  "lot": "020",
  "eas_baseid": "363384",
  "coordinates": {
    "lat": 37.753178,
    "lng": -122.433544
  },
  "parcel": {
    "year_built": 1900,
    "units": 1,
    "stories": 3,
    "rooms": 10,
    "bathrooms": 4,
    "bedrooms": 4,
    "lot_area_sqft": 2850,
    "building_area_sqft": 3395,
    "basement_area_sqft": 1302,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Noe Valley",
    "analysis_neighborhood": "Noe Valley",
    "property_location_raw": "0000 4070 23RD                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 3196179,
    "assessed_improvement_value": 1369788,
    "last_sale_date": "2020-02-20"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District",
    "yearbuilt": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Noe & Alvarado Streets 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": "1885–1915",
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "201411252507",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-11-25",
      "status_date": "2015-01-28",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "per field inspector direction this permit is to clarify the scope of work under app#201405226506 to include roof framing work shown on approved plans dated may 15th 2014.",
      "source": "sf-building-permits"
    },
    {
      "number": "201405226506",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-05-22",
      "status_date": "2015-01-28",
      "estimated_cost": 60000,
      "revised_cost": 60000,
      "description": "revision to appl #201402037657, 201403281961, 201404143182, 201404102894: revision to reflect new engineer for the record & additional concrete underpinning & shear wall grade deam & moment frame & steel beam.",
      "source": "sf-building-permits"
    },
    {
      "number": "201405166022",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-05-16",
      "status_date": "2014-12-03",
      "estimated_cost": 10000,
      "revised_cost": 30000,
      "description": "revision to 201402037657, 201404102894, 201404143182,201404143182. document change of architect/eng. layout/exterior changes all levels. 6 skylights,wndow/door changes,relocate dormers, lower ceiling 2nd fl,2 new pwdr rooms,relocate int staircase steel/wood, reconfigure 1st fl media/2 bdrm,egress",
      "source": "sf-building-permits"
    },
    {
      "number": "201404143182",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-04-14",
      "status_date": "2015-01-28",
      "estimated_cost": 1000,
      "revised_cost": 1000,
      "description": "install doors to roof planters. install planter on roof according to plans.",
      "source": "sf-building-permits"
    },
    {
      "number": "201404102894",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-04-10",
      "status_date": "2015-01-28",
      "estimated_cost": 1000,
      "revised_cost": 9000,
      "description": "revision to appl #2014.0328.1961: create egress hallway & revised plan to create den space at attic floor.",
      "source": "sf-building-permits"
    },
    {
      "number": "201403281961",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-03-28",
      "status_date": "2015-01-28",
      "estimated_cost": 35600,
      "revised_cost": 35600,
      "description": "replace stucco on front facade with historical siding and moulding. renovate a portion of the 2nd floor into habitable space. add 1 bathroom to habitable portion of the 2nd floor.",
      "source": "sf-building-permits"
    },
    {
      "number": "201402047746",
      "type": "otc alterations permit",
      "status": "withdrawn",
      "filed": "2014-02-04",
      "status_date": "2014-04-01",
      "revised_cost": 0,
      "description": "demo stucco from front of building and front two sides. remove roofing shingles.",
      "source": "sf-building-permits"
    },
    {
      "number": "201402037657",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-02-03",
      "status_date": "2015-01-28",
      "estimated_cost": 80000,
      "revised_cost": 280000,
      "description": "comply w/nov #201448152 & 201447852 -retrofit (e) kitchen & bath @ 1st flr. add 1 bath, 1 bedrm, media to ground flr along w/adding partition for office space. add 6 dormers & strengthen roof, repour/repair foundation",
      "source": "sf-building-permits"
    },
    {
      "number": "201401226835",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-01-22",
      "status_date": "2015-01-28",
      "estimated_cost": 2300,
      "revised_cost": 2300,
      "description": "comply with complaint #201447852. repair dryrot rafting skiplap and roofing. repair termite damage rear gable wall. all work repair in like kind.",
      "source": "sf-building-permits"
    },
    {
      "number": "201310119165",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-10-11",
      "status_date": "2015-01-28",
      "estimated_cost": 40000,
      "revised_cost": 40000,
      "description": "remodel 2 bathrooms and kitchen (same locations) - replace all elec. wirings and or legalize existing. replace all plumbing in the bldg.",
      "source": "sf-building-permits"
    },
    {
      "number": "9513280S",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1995-08-18",
      "status_date": "1997-02-13",
      "estimated_cost": 75000,
      "description": "horizontal",
      "source": "sf-building-permits"
    }
  ],
  "permit_summary": {
    "count_on_file": 14,
    "range": "1995–2017",
    "shown_on_page": 11,
    "note": "3 nominal $1 street-space or sidewalk permits are omitted from the timeline."
  },
  "sources": [
    {
      "id": "sf-eas-addresses",
      "name": "SF Enterprise Addressing System via DataSF",
      "query": "https://data.sfgov.org/resource/3mea-di5p.json?street_name=23RD&street_type=ST&address_number=4070",
      "retrieved": "2026-10-24"
    },
    {
      "id": "sf-assessor-roll",
      "name": "SF Office of the Assessor-Recorder via DataSF (2025 secured roll)",
      "query": "https://data.sfgov.org/resource/wv5m-vpq2.json?parcel_number=3624020&$order=closed_roll_year%20DESC&$limit=1",
      "retrieved": "2026-10-24"
    },
    {
      "id": "sf-building-permits",
      "name": "SF Dept. of Building Inspection via DataSF",
      "query": "https://data.sfgov.org/resource/i98e-djp9.json?block=3624&lot=020",
      "retrieved": "2026-10-24"
    },
    {
      "id": "sf-planning",
      "name": "SF Planning Department — Historic Resource Status by Parcel via DataSF",
      "query": "https://data.sfgov.org/resource/3tsw-4idn.json?apn=3624020",
      "retrieved": "2026-10-24"
    },
    {
      "id": "sf-historic-districts",
      "name": "SF Planning Department — Historic Districts via DataSF",
      "query": "https://data.sfgov.org/resource/63x5-g3m4.json?$where=intersects(the_geom,%20%27POINT(-122.43354362736513%2037.75317838957041)%27)",
      "retrieved": "2026-10-24"
    },
    {
      "id": "sf-planning-commission-minutes-1995-12-07",
      "name": "San Francisco City Planning Commission, minutes of the meeting of 7 December 1995",
      "label": "San Francisco City Planning Commission minutes, San Francisco Public Library (Internet Archive)",
      "query": "https://archive.org/details/41minutesofsanfran1995san/page/n331/mode/1up",
      "retrieved": "2026-10-24"
    }
  ],
  "historical_record": [
    {
      "date": "1995-12-07",
      "kind": "planning decision",
      "description": "With no opposition filed, the City Planning Commission approved, 6-0, replacing the rear porch with a one-storey rear addition over the basement and altering the facade and interior.",
      "source": "sf-planning-commission-minutes-1995-12-07"
    }
  ]
}