{
  "address": "3340–3342 18th Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/18th-street/3340/",
  "apn": "3575022",
  "block": "3575",
  "lot": "022",
  "eas_baseid": "360256",
  "coordinates": {
    "lat": 37.76214,
    "lng": -122.41806
  },
  "address_range": "3340–3342",
  "street_numbers_on_parcel": [
    "3340",
    "3342"
  ],
  "parcel": {
    "year_built": 1912,
    "units": 4,
    "stories": 2,
    "rooms": 18,
    "bathrooms": 4,
    "bedrooms": 10,
    "lot_area_sqft": 2500,
    "building_area_sqft": 3133,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "CM",
    "supervisor_district": 9,
    "assessor_neighborhood": "Inner Mission",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "3342 3340 18TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1868540,
    "assessed_improvement_value": 886507,
    "last_sale_date": "2017-03-06"
  },
  "historic_status": {
    "ceqa_status_code": "C",
    "ceqa_status_code_article_10_11": "C",
    "ceqa_status_label": "Not a historical resource",
    "reason": "Historic Survey Result",
    "yearbuilt": "1912",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202103015539",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2021-03-01",
      "status_date": "2021-04-16",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa# 202011108667. connection changes to steel frame at grid line a.",
      "source": "sf-building-permits"
    },
    {
      "number": "202011108667",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-11-10",
      "status_date": "2021-04-16",
      "estimated_cost": 30000,
      "revised_cost": 40000,
      "description": "voluntary structural upgrade. install new steel frame at front wall.",
      "source": "sf-building-permits"
    },
    {
      "number": "201706159461",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2017-06-15",
      "status_date": "2017-09-14",
      "estimated_cost": 1200,
      "revised_cost": 6000,
      "description": "revision to 201412022819 revised storefront, t-24 add lighting hvac maher na",
      "source": "sf-building-permits"
    },
    {
      "number": "M727367",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2016-10-04",
      "status_date": "2016-10-04",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201412022819",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-12-02",
      "status_date": "2017-09-22",
      "estimated_cost": 52000,
      "revised_cost": 52000,
      "description": "conversion of (e) garage to commerical space. construction of (n) accessible unisex restroom. repair to (e) rated walls & ceiling.",
      "source": "sf-building-permits"
    },
    {
      "number": "M401389",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-06-13",
      "status_date": "2013-06-13",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201305308225",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-05-30",
      "status_date": "2013-12-20",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "remove illegal unit from basement at rear of building. remove kitchen sink, toilet & tub. cap all utilities at sosurce to comply with 201399233",
      "source": "sf-building-permits"
    },
    {
      "number": "200511188598",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2005-11-18",
      "status_date": "2005-11-18",
      "estimated_cost": 5400,
      "revised_cost": 5400,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9925770",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1999-12-10",
      "status_date": "2001-04-03",
      "estimated_cost": 10000,
      "description": "remodel:gd fl-bath,kitchen, repair damaged finishes",
      "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=18TH&street_type=ST&address_number=3340",
      "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=3575022&$order=closed_roll_year%20DESC&$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=3575&lot=022",
      "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=3575022",
      "retrieved": "2026-07-31"
    },
    {
      "id": "inner-mission-north-context-statement",
      "name": "San Francisco Planning Department, Inner Mission North 1853-1943 Context Statement, dated on its cover 2005, adopted 2004",
      "query": "https://citypln-m-extnl.sfgov.org/SharedLinks.aspx?accesskey=ef5726f8f01317048294fa4befc3151c63c7d0f43ec4a26cbf5c21877a313274&VaultGUID=A4A7DACD-B0DC-4322-BD29-F6F07103C6E0",
      "listing": "https://sfplanning.org/project/sf-histories-historic-context-statements#completed",
      "label": "Inner Mission North Context Statement, adopted 2004",
      "retrieved": "2026-08-15"
    }
  ],
  "historic_survey": {
    "survey": "Inner Mission North Context Statement, adopted 2004",
    "source": "inner-mission-north-context-statement",
    "note": "Contributor to the Mission Reconstruction District locally significant area (3340 18th St). Criterion C: the survey's proposed district for the northern Mission's rebuilding after the 1906 earthquake and fire, period of significance May 1906–1913, predominantly Classical Revival, Edwardian and Mission Revival in wood frame construction. Contributor to the Inner Mission Commercial Corridor locally significant area (3340 18th St). Formerly called the 16th Street Commercial Corridor. Criterion C: San Francisco's largest concentration of residential-over-commercial and small-scale commercial buildings, spanning both pre-1906 and post-disaster construction, dated c. 1870s–1931."
  }
}