{
  "address": "3512–3516 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/3512/",
  "apn": "3606014",
  "block": "3606",
  "lot": "014",
  "eas_baseid": "362169",
  "coordinates": {
    "lat": 37.756761,
    "lng": -122.426105
  },
  "address_range": "3512–3516",
  "street_numbers_on_parcel": [
    "3512",
    "3514",
    "3516"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 3,
    "stories": 3,
    "rooms": 14,
    "bathrooms": 4,
    "bedrooms": 6,
    "lot_area_sqft": 2060,
    "building_area_sqft": 3375,
    "lot_depth_ft": 51.5,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "3516 3512 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1336093,
    "assessed_improvement_value": 769462,
    "last_sale_date": "2013-02-28"
  },
  "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": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202310058112",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-10-05",
      "status_date": "2024-05-17",
      "estimated_cost": 9000,
      "revised_cost": 9000,
      "description": "in kind repair roof deck (less than 50%)",
      "source": "sf-building-permits"
    },
    {
      "number": "202310037938",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-10-03",
      "status_date": "2025-06-23",
      "estimated_cost": 82000,
      "revised_cost": 82000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "202304276556",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-04-27",
      "status_date": "2023-07-11",
      "estimated_cost": 7500,
      "revised_cost": 7500,
      "description": "in-kind repair of front stairs, less than 50%. wood to remain as material of work.",
      "source": "sf-building-permits"
    },
    {
      "number": "202105049732",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2021-05-04",
      "status_date": "2021-05-04",
      "estimated_cost": 7500,
      "revised_cost": 7500,
      "description": "dry rot trim repair in kind replacement",
      "source": "sf-building-permits"
    },
    {
      "number": "202012090661",
      "type": "otc alterations permit",
      "status": "filed",
      "filed": "2020-12-09",
      "status_date": "2020-12-09",
      "estimated_cost": 35000,
      "revised_cost": 0,
      "description": "encroachment into the front right way, to widen entry steps, landing & front of building by 32\"",
      "source": "sf-building-permits"
    },
    {
      "number": "M1096847",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-06-18",
      "status_date": "2019-06-18",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201904198527",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-04-19",
      "status_date": "2019-04-19",
      "estimated_cost": 23385,
      "revised_cost": 23385,
      "description": "replace sashes in 3514 & 3516 with solid wood, double hung, double pane, with ogee lugs, consistent with historical appearance, replace one set of french doors.",
      "source": "sf-building-permits"
    },
    {
      "number": "M1035827",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-02-05",
      "status_date": "2019-02-05",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201812198757",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-12-19",
      "status_date": "2019-11-07",
      "estimated_cost": 10000,
      "revised_cost": 10000,
      "description": "comply with complaint 201810741. like for like repair replacement is necessary of existing east side trim on west side lower level, consistent w/ original design. work not visible from street.",
      "source": "sf-building-permits"
    },
    {
      "number": "M1014347",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-12-07",
      "status_date": "2018-12-07",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M965327",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-08-15",
      "status_date": "2018-08-15",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M960307",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-08-06",
      "status_date": "2018-08-06",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201806141837",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-06-14",
      "status_date": "2021-04-29",
      "estimated_cost": 4000,
      "revised_cost": 4000,
      "description": "install and provide central station monitoring of automatic fire sprinkler system",
      "source": "sf-building-permits"
    },
    {
      "number": "M922647",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-05-04",
      "status_date": "2018-05-04",
      "revised_cost": 0,
      "description": "streetspace",
      "source": "sf-building-permits"
    },
    {
      "number": "M909688",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-04-06",
      "status_date": "2018-04-06",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201802221897",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-02-22",
      "status_date": "2021-04-29",
      "estimated_cost": 8500,
      "revised_cost": 13000,
      "description": "ground floor: furnish and install automatic fire sprinkler system 2\" copper-k underground upper floor/not in contract ref 201706199682",
      "source": "sf-building-permits"
    },
    {
      "number": "M877847",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-01-18",
      "status_date": "2018-01-18",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M812387",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2017-07-21",
      "status_date": "2017-07-21",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201706199682",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2017-06-19",
      "status_date": "2019-11-07",
      "estimated_cost": 50000,
      "revised_cost": 128970,
      "description": "structural upgrade lower most story, foundation work. no change in exterior facade. change window in the back.",
      "source": "sf-building-permits"
    },
    {
      "number": "9609166",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1996-05-24",
      "status_date": "1997-08-21",
      "estimated_cost": 8591,
      "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=21ST&street_type=ST&address_number=3512",
      "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=3606014&$order=closed_roll_year%20DESC&$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=3606&lot=014",
      "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=3606014",
      "retrieved": "2026-07-28"
    }
  ]
}