{
  "address": "4440 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/4440/",
  "apn": "2698018",
  "block": "2698",
  "lot": "018",
  "eas_baseid": "344505",
  "coordinates": {
    "lat": 37.757755,
    "lng": -122.43758
  },
  "parcel": {
    "year_built": 1917,
    "units": 2,
    "stories": 1,
    "rooms": 9,
    "bathrooms": 2,
    "lot_area_sqft": 2748,
    "building_area_sqft": 2015,
    "use": "Multi-Family Residential",
    "property_class": "TIC Bldg 4 units or less",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "4440A4440 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1894568,
    "assessed_improvement_value": 1263045,
    "last_sale_date": "2022-05-05"
  },
  "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": "1917",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202603056967",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2026-03-05",
      "status_date": "2026-03-05",
      "estimated_cost": 2500,
      "revised_cost": 2500,
      "description": "front bldg: remove existing cernamic tiles in master bathroom on 1st floor and replace in kind. approx 50 sq ft.",
      "source": "sf-building-permits"
    },
    {
      "number": "202507211195",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-07-21",
      "status_date": "2025-11-20",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "(front) revise p/a #2025-0421-4831 to remove the previously approved all skylight installation bathroom and aboved stairs from the approved scope of work.",
      "source": "sf-building-permits"
    },
    {
      "number": "202506209112",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-06-20",
      "status_date": "2025-08-06",
      "estimated_cost": 28000,
      "revised_cost": 28000,
      "description": "re-roofing: remove and replace roofing material / existing roofing material (in-kind)",
      "source": "sf-building-permits"
    },
    {
      "number": "202504214831",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-04-21",
      "status_date": "2025-11-20",
      "estimated_cost": 10000,
      "revised_cost": 30000,
      "description": "main house rear ext. stairs reconfiguration; stair from 2nd fl to the ground fl to be taken out. infill (e) door to the stairs to create new window. extend deck landing on ground floor; new fire wall along property line @ rear stairs w/new footing; add skylights @ bathroom & above interior stairs.",
      "source": "sf-building-permits"
    },
    {
      "number": "202408098312",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-08-09",
      "status_date": "2024-09-23",
      "estimated_cost": 3700,
      "revised_cost": 3700,
      "description": "2nd floor: remove and replace existing ceramic floor tile in 2nd fl guest bathroom in kind. approx. 35 sq ft. no other modification to the space.",
      "source": "sf-building-permits"
    },
    {
      "number": "202406104113",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-06-10",
      "status_date": "2024-07-15",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa# 201602048790, 200411159146, 200010052434. all work is complete.",
      "source": "sf-building-permits"
    },
    {
      "number": "202402226332",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-02-22",
      "status_date": "2024-05-30",
      "estimated_cost": 40290,
      "revised_cost": 40290,
      "description": "revision to permit# 202307172273: remove and replace (16) windows retrofit. same size and location. not street visible.",
      "source": "sf-building-permits"
    },
    {
      "number": "202309116278",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-09-11",
      "status_date": "2023-11-03",
      "estimated_cost": 7380,
      "revised_cost": 7380,
      "description": "remove closet doors in kitchen and install new cabinets and new electrical outlets.",
      "source": "sf-building-permits"
    },
    {
      "number": "202307172273",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-07-17",
      "status_date": "2024-05-30",
      "estimated_cost": 26750,
      "revised_cost": 26750,
      "description": "remove and replace (10) windows retrofit. same size and same location. (4) front windows are marvin wood clad. (6) rear not visible.",
      "source": "sf-building-permits"
    },
    {
      "number": "M1230567",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2023-04-17",
      "status_date": "2023-04-17",
      "revised_cost": 244,
      "description": "per pa #202206146270, add address to rear bldg at apn 2698/018 as: 4440a 20th st.",
      "source": "sf-building-permits"
    },
    {
      "number": "202212158463",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-12-15",
      "status_date": "2023-02-07",
      "estimated_cost": 1500,
      "revised_cost": 1500,
      "description": "replacing approx 4 steps to bring to code of existing deck. less than 50%. rear deck.",
      "source": "sf-building-permits"
    },
    {
      "number": "202210285431",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-10-28",
      "status_date": "2023-02-07",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa#202206146270. according to site inspector's request. extg site condition different than proposed at cottage.",
      "source": "sf-building-permits"
    },
    {
      "number": "202206146270",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-06-14",
      "status_date": "2023-02-07",
      "estimated_cost": 150000,
      "revised_cost": 150000,
      "description": "rear cottage - interior remodeling of single family. 2 story cottage. reconfigure the (e) bathroom; a new open plan kitchen - living room and expansion of room in 2nd floor by using some attic space (rear bldg)",
      "source": "sf-building-permits"
    },
    {
      "number": "202206136151",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-06-13",
      "status_date": "2023-02-07",
      "estimated_cost": 200000,
      "revised_cost": 200000,
      "description": "interior remodel of a single family 2-story main house. add new connecting internal stairs. connecting ground & 2nd fl. new master bedroom with walk-in closet & bathroom on ground floor. remodel on existing bathroom. new open kitchen on 2nd fl.",
      "source": "sf-building-permits"
    },
    {
      "number": "201602048790",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2016-02-04",
      "status_date": "2024-07-15",
      "estimated_cost": 2700,
      "revised_cost": 2700,
      "description": "11 windows install replacement at rear cottage not visible from street, window material carbon fiber lowe's contractor to do installation, u factor shall not exceed .32",
      "source": "sf-building-permits"
    },
    {
      "number": "200611066994",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2006-11-06",
      "status_date": "2007-01-31",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "install vinyl siding. 3 sides back house. not visible from street. no structural work to be done.",
      "source": "sf-building-permits"
    },
    {
      "number": "200606073436",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2006-06-07",
      "status_date": "2006-09-19",
      "estimated_cost": 3966,
      "revised_cost": 3966,
      "description": "replace counter top sink, faucet in kind. no structural changes.",
      "source": "sf-building-permits"
    },
    {
      "number": "200411159146",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2004-11-15",
      "status_date": "2024-07-15",
      "estimated_cost": 1200,
      "revised_cost": 1200,
      "description": "replace 2 footings in the basement.",
      "source": "sf-building-permits"
    },
    {
      "number": "M29753",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2004-10-14",
      "status_date": "2004-10-14",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "200106121384",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2001-06-12",
      "status_date": "2001-10-12",
      "estimated_cost": 2700,
      "revised_cost": 2700,
      "description": "install white double hungs same style as is, side back windows total 9, no alteration",
      "source": "sf-building-permits"
    },
    {
      "number": "200010052434",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-10-05",
      "status_date": "2001-04-05",
      "estimated_cost": 7100,
      "revised_cost": 7100,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "8603483",
      "type": "additions alterations or repairs",
      "status": "issued",
      "filed": "1986-03-26",
      "status_date": "1986-05-08",
      "estimated_cost": 2000,
      "description": "comply with complaint #p15022",
      "source": "sf-building-permits"
    },
    {
      "number": "8507534",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1985-07-16",
      "status_date": "1985-09-11",
      "estimated_cost": 9700,
      "description": "remodel kitchen and bath",
      "source": "sf-building-permits"
    },
    {
      "number": "0441712",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1974-11-29",
      "status_date": "1986-03-04",
      "description": "created during job card conversion on: 04/19/84",
      "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=20TH&street_type=ST&address_number=4440",
      "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=2698018&$order=closed_roll_year%20DESC&$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=2698&lot=018",
      "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=2698018",
      "retrieved": "2026-07-28"
    }
  ]
}