{
  "address": "3660–3664 16th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/16th-street/3660/",
  "apn": "3561025",
  "block": "3561",
  "lot": "025",
  "eas_baseid": "493678",
  "coordinates": {
    "lat": 37.76442,
    "lng": -122.434468
  },
  "address_range": "3660–3664",
  "street_numbers_on_parcel": [
    "3660",
    "3662",
    "3664"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 3,
    "stories": 2,
    "rooms": 15,
    "bathrooms": 3,
    "lot_area_sqft": 2874,
    "building_area_sqft": 2903,
    "use": "Multi-Family Residential",
    "property_class": "Flats & Duplex",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 8,
    "assessor_neighborhood": "Duboce Triangle",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "3664 3660 16TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1379570,
    "assessed_improvement_value": 344892,
    "last_sale_date": "2022-04-28"
  },
  "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": "Duboce Triangle Historic District Extension",
    "california_register_status": "Eligible (not listed)",
    "national_register_status": "Not listed",
    "article_10_11_status": "No local landmark protection",
    "local_landmark_protection": false,
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "202512151793",
      "type": "otc alterations permit",
      "status": "filed",
      "filed": "2025-12-15",
      "status_date": "2025-12-15",
      "estimated_cost": 2000,
      "revised_cost": 0,
      "description": "no work oiin ground fl and 3rd fl. ovv2nd fl : 3662 16th st: construct firewall approx 9'8 above grade",
      "source": "sf-building-permits"
    },
    {
      "number": "202404129892",
      "type": "additions alterations or repairs",
      "status": "approved",
      "filed": "2025-02-12",
      "status_date": "2025-11-18",
      "estimated_cost": 10000,
      "revised_cost": 240584,
      "description": "g/f #3660: construct 2 new bath, renovate e bath. demo partition wall to add new bedroom. relocate water heater/range. demo stair that connects g/f to 3/f. 2nd fl #3662: construct new bath 2, renovate e bath,renovate e kitchen.",
      "source": "sf-building-permits"
    },
    {
      "number": "202208301602",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2022-08-30",
      "status_date": "2022-10-24",
      "estimated_cost": 27000,
      "revised_cost": 27000,
      "description": "removal of existing damaged shingles (siding), repairing with 1516 saturated felt building paper, install zbar galvanized flashing as needed, in-kind replacement with #1 cedar shingles with 5\" courses.",
      "source": "sf-building-permits"
    },
    {
      "number": "202205184552",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2022-05-18",
      "status_date": "2022-05-20",
      "estimated_cost": 600,
      "revised_cost": 2000,
      "description": "partial repair of wall to identify mold damage. partial repair of ceiling to identify water damage. all work in 1st floor unit (living room).",
      "source": "sf-building-permits"
    },
    {
      "number": "201707212605",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2017-07-21",
      "status_date": "2017-09-19",
      "estimated_cost": 20000,
      "revised_cost": 20000,
      "description": "to comply with nov 201408721 - front stair landing repair in kind",
      "source": "sf-building-permits"
    },
    {
      "number": "201502128156",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-02-12",
      "status_date": "2015-12-11",
      "estimated_cost": 11000,
      "revised_cost": 15000,
      "description": "replace in-kind rear wood stairway to yard (2 means egress required).to comply with nov # 201404921 item #3(two)",
      "source": "sf-building-permits"
    },
    {
      "number": "200404070725",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2004-04-07",
      "status_date": "2004-04-07",
      "estimated_cost": 325,
      "revised_cost": 325,
      "description": "repair dryrot/replace lock to comply w/nov #200448640",
      "source": "sf-building-permits"
    },
    {
      "number": "8503098",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1985-03-28",
      "status_date": "1986-10-27",
      "estimated_cost": 12000,
      "description": "to comply with dahi routine insp of 3/6/85",
      "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=16TH&street_type=ST&address_number=3660",
      "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=3561025&$order=closed_roll_year%20DESC&$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=3561&lot=025",
      "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=3561025",
      "retrieved": "2026-07-28"
    },
    {
      "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(-122.43446849556555%2037.76442046851621)%27)",
      "retrieved": "2026-07-28"
    }
  ]
}