{
  "address": "3442–3446 21st Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/21st-street/3442/",
  "apn": "3607019",
  "block": "3607",
  "lot": "019",
  "eas_baseid": "362239",
  "coordinates": {
    "lat": 37.75695,
    "lng": -122.424387
  },
  "address_range": "3442–3446",
  "street_numbers_on_parcel": [
    "3442",
    "3444",
    "3446"
  ],
  "parcel": {
    "year_built": 1928,
    "units": 2,
    "stories": 2,
    "rooms": 12,
    "bathrooms": 2,
    "lot_area_sqft": 3420,
    "building_area_sqft": 3970,
    "lot_depth_ft": 14,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "3444 3442 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2921012,
    "assessed_improvement_value": 2478478,
    "last_sale_date": "2016-04-05"
  },
  "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": "1928",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202404160087",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-04-16",
      "status_date": "2024-04-19",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa# 2016-1214-4936,2017-1012-1094,2018-0522-9820 all work is complete",
      "source": "sf-building-permits"
    },
    {
      "number": "202310259406",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-10-25",
      "status_date": "2024-02-28",
      "estimated_cost": 10700,
      "revised_cost": 16800,
      "description": "new sprinkler waterflow and supervisory system fully sprinklered bldg. install new control panel with built in radio, smoke detector above and pull station near panel in garage area. install wireless gateway for wireless monitor modules to tie-in waterflow and tamper switches to new panel to be",
      "source": "sf-building-permits"
    },
    {
      "number": "202307273163",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-07-27",
      "status_date": "2024-03-12",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa# 202007099892 to tap into 12\" main (instead of 4\" main) and change ug lateral from 4\" di to 2\" copper k, fire sprinklers for the house (nfpa 13).",
      "source": "sf-building-permits"
    },
    {
      "number": "202007099892",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2020-07-09",
      "status_date": "2024-03-12",
      "estimated_cost": 2500,
      "revised_cost": 5000,
      "description": "fire sprinkler and underground for the house ref pa# 201612144936",
      "source": "sf-building-permits"
    },
    {
      "number": "M1160768",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-11-01",
      "status_date": "2019-11-01",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M1068487",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-04-18",
      "status_date": "2019-04-18",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201808217910",
      "type": "additions alterations or repairs",
      "status": "issued",
      "filed": "2018-08-21",
      "status_date": "2020-09-26",
      "estimated_cost": 26000,
      "revised_cost": 26000,
      "description": "new private roof deck (access from top unit only). new stair access to roof deck. expansion of balcony. no other work proposed.",
      "source": "sf-building-permits"
    },
    {
      "number": "201805229820",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2018-05-22",
      "status_date": "2024-04-19",
      "estimated_cost": 400,
      "revised_cost": 1,
      "description": "new landscape planters in rear yard. revision to app#201612144936. structural only. n/a for maher",
      "source": "sf-building-permits"
    },
    {
      "number": "M875467",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-01-10",
      "status_date": "2018-01-10",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201710121094",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2017-10-12",
      "status_date": "2024-04-19",
      "estimated_cost": 15000,
      "revised_cost": 25000,
      "description": "temporary shoring per plan. n/a ordinance #155-13",
      "source": "sf-building-permits"
    },
    {
      "number": "201612144936",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2016-12-14",
      "status_date": "2024-04-19",
      "estimated_cost": 425000,
      "revised_cost": 850000,
      "description": "exterior & interior renovation of 2 units residence. excavation of the lowest level to allow compliant headroom. adjusting location of floor above new foundation. replacement of glazing on rear facade with new windows. new roof deck. legalize 3rd unit per ord 43-14.",
      "source": "sf-building-permits"
    },
    {
      "number": "8810056",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1988-07-22",
      "status_date": "1988-10-28",
      "estimated_cost": 500,
      "description": "skky light added to kitchen remodel permit #8807284",
      "source": "sf-building-permits"
    },
    {
      "number": "8807284",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1988-06-03",
      "status_date": "1989-07-27",
      "estimated_cost": 50000,
      "description": "remodel kitchen, add bathroom",
      "source": "sf-building-permits"
    },
    {
      "number": "8200176",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1982-01-11",
      "status_date": "1983-03-04",
      "estimated_cost": 3000,
      "source": "sf-building-permits"
    },
    {
      "number": "8105191",
      "type": "additions alterations or repairs",
      "status": "filing",
      "filed": "1981-06-10",
      "status_date": "1981-06-10",
      "estimated_cost": 1,
      "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=21ST&street_type=ST&address_number=3442",
      "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=3607019&$order=closed_roll_year%20DESC&$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=3607&lot=019",
      "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=3607019",
      "retrieved": "2026-07-31"
    }
  ]
}