{
 "id": "n-08803f50c8",
 "slug": "markham-buttonville-municipal-airport",
 "type": "other",
 "name": "Buttonville Municipal Airport",
 "aka": [],
 "city": "Markham",
 "county": null,
 "state": null,
 "country": "Canada",
 "census_division": null,
 "lat": 43.86111111,
 "lon": -79.36111111,
 "geocode_method": "wikipedia",
 "address": null,
 "metro": null,
 "original_use": "airport",
 "year_opened": 1953,
 "year_closed": 2023,
 "acres": null,
 "gla_sqft": null,
 "stores_peak": null,
 "levels": null,
 "original_developer": null,
 "original_architect": null,
 "before_notes": "Draft from Wikipedia, model-extracted, unreviewed: The former Buttonville Municipal Airport is planned to be redeveloped for residential and commercial uses.",
 "strategy": [
  "redevelop"
 ],
 "new_use": [
  "housing",
  "retail"
 ],
 "share_retrofit": null,
 "status": "proposed",
 "year_retrofit": null,
 "developer": null,
 "architect": null,
 "after_notes": "redeveloped for residential and commercial uses",
 "narrative": "Buttonville is a suburban neighbourhood and former hamlet in the city of Markham, Ontario, Canada, bordering the larger Unionville district. The hamlet was named after its founder, John Button.\nAbout 30,000 residents live in the area, which is located along the Woodbine Avenue corridor from approximately Highway 7 in the south to Sixteenth Avenue in the north, with the historic hamlet itself located roughly midway between the two arterials. The Rouge River flows through the northeast and Highway 404 passes by in the west (forming the boundary between Buttonville and the City of Markham), with two interchanges.",
 "narrative_license": "CC BY-SA 4.0",
 "narrative_source": "https://en.wikipedia.org/wiki/Buttonville,_Markham",
 "zoning_change": null,
 "public_subsidy": null,
 "entitlement_year": null,
 "planning_notes": null,
 "wikidata_qid": "Q5003113",
 "wikipedia": "https://en.wikipedia.org/wiki/Buttonville,_Markham",
 "osm_id": null,
 "verified": "draft",
 "verified_by": null,
 "last_verified": null,
 "last_updated": "2026-10-18",
 "created": "2026-10-18",
 "contributor_name": null,
 "contributor_org": null,
 "contributor_link": null,
 "international": 1,
 "county_fips": null,
 "opp_score": null,
 "opp_reasons": [],
 "for_sale": 0,
 "distressed": 0,
 "deep": {},
 "elements": [
  {
   "slug": "era-closed-2020s",
   "name": "Closed 2020s",
   "grp": "era",
   "evidence": "2023",
   "origin": "newtypes-extraction"
  },
  {
   "slug": "era-opened-1950s",
   "name": "Opened 1950s",
   "grp": "era",
   "evidence": "1953",
   "origin": "newtypes-extraction"
  },
  {
   "slug": "status-pipeline",
   "name": "Retrofit in the pipeline",
   "grp": "finance",
   "evidence": "proposed",
   "origin": "newtypes-extraction"
  },
  {
   "slug": "place-mall-cluster",
   "name": "3+ other atlas sites within 10 km",
   "grp": "place",
   "evidence": "4 within 10 km",
   "origin": "computed"
  },
  {
   "slug": "strategy-redevelop",
   "name": "Redeveloped",
   "grp": "strategy",
   "evidence": "redeveloped for residential and commercial uses",
   "origin": "record"
  },
  {
   "slug": "use-housing",
   "name": "Housing",
   "grp": "use",
   "evidence": "redeveloped for residential and commercial uses",
   "origin": "newtypes-extraction"
  },
  {
   "slug": "use-retail",
   "name": "Retail (continued)",
   "grp": "use",
   "evidence": "new_use field",
   "origin": "newtypes-extraction"
  }
 ],
 "sources": [
  {
   "id": 7442,
   "site_id": "n-08803f50c8",
   "url": "https://en.wikipedia.org/wiki/Buttonville,_Markham",
   "title": "Buttonville, Markham",
   "publisher": "Wikipedia",
   "date": null,
   "quote": "Buttonville Municipal Airport",
   "kind": "wikipedia",
   "license": "CC BY-SA 4.0",
   "retrieved": "2026-10-18"
  },
  {
   "id": 7443,
   "site_id": "n-08803f50c8",
   "url": "https://en.wikipedia.org/wiki/Buttonville,_Markham",
   "title": "Timeline",
   "publisher": null,
   "date": null,
   "quote": "operated from 1953",
   "kind": "quote",
   "license": null,
   "retrieved": "2026-10-18"
  },
  {
   "id": 7444,
   "site_id": "n-08803f50c8",
   "url": "https://en.wikipedia.org/wiki/Buttonville,_Markham",
   "title": "Timeline",
   "publisher": null,
   "date": null,
   "quote": "operated from 1953 to 2023",
   "kind": "quote",
   "license": null,
   "retrieved": "2026-10-18"
  }
 ],
 "parties": [],
 "events": [
  {
   "id": 4398,
   "site_id": "n-08803f50c8",
   "date": null,
   "year": 1953,
   "kind": "note",
   "detail": "Airport began operation",
   "share": null,
   "source_id": 7443,
   "verified": "draft"
  },
  {
   "id": 4400,
   "site_id": "n-08803f50c8",
   "date": null,
   "year": 1953,
   "kind": "opened",
   "detail": "Opened",
   "share": null,
   "source_id": null,
   "verified": "draft"
  },
  {
   "id": 4399,
   "site_id": "n-08803f50c8",
   "date": null,
   "year": 2023,
   "kind": "note",
   "detail": "Airport closed",
   "share": null,
   "source_id": 7444,
   "verified": "draft"
  },
  {
   "id": 4401,
   "site_id": "n-08803f50c8",
   "date": null,
   "year": 2023,
   "kind": "closed",
   "detail": "Closed",
   "share": null,
   "source_id": null,
   "verified": "draft"
  }
 ],
 "gallery": [],
 "anchors": [],
 "deals": [],
 "owner_of_record": null,
 "ctx": {
  "assessment": {
   "what_happened": "Buttonville Municipal Airport opened in 1953, closed in 2023. It is proposed for redevelopment into housing and retail. ",
   "why": "The site is part of a pattern of airport-to-mixed-use transitions (e.g., Eilat Airport, closed 2019).",
   "where_it_stands": "Status is 'proposed' with no current development timeline. Context shows 4 nearby sites within 10km (including stalled and demolished malls).",
   "for_a_planner": [
    "No parcel or deal details provided.",
    "Peer comparisons confirm similar redevelopments but lack site-specific data."
   ],
   "for_a_developer": [
    "New use (housing/retail) is stated but no market analysis or timeline.",
    "Unknown if zoning approvals or financing are secured."
   ],
   "risks_and_unknowns": [
    "Verified status is 'draft' (unconfirmed data).",
    "No details on parcel size, infrastructure, or community feedback."
   ],
   "data_quality": "partial",
   "one_line": "Proposed airport redevelopment to housing/retail; peer precedents exist but site specifics unknown.",
   "model": "qwen3-30b-a3b-64k:latest",
   "machine": "Dell 5820 RTX 3090 (Ollama, qwen3-30b-a3b)",
   "record_sha1": "2eba35407350"
  },
  "cluster": {
   "within_10km": [
    {
     "id": "n-41f523b62d",
     "name": "Shops on Steeles and 404",
     "city": "Markham",
     "status": "stalled",
     "km": 5.3
    },
    {
     "id": "m-885eb6cc29",
     "name": "Market Village",
     "city": "Markham",
     "status": "demolished",
     "km": 6.1
    },
    {
     "id": "n-ec54f22aba",
     "name": "Bridlewood Mall",
     "city": "Toronto",
     "status": "partial",
     "km": 7.8
    },
    {
     "id": "n-c644c5fdbf",
     "name": "Centerpoint Mall",
     "city": "Toronto",
     "status": "proposed",
     "km": 8.7
    }
   ],
   "count_10km": 4,
   "count_25km": 12
  },
  "peers": {
   "peers": [
    {
     "id": "n-7f8c397dc9",
     "name": "Former Eilat Airport",
     "city": "Eilat",
     "state": null,
     "score": 7.0,
     "why": [
      "opened 1949",
      "closed 2019",
      "same strategy: redevelop"
     ]
    },
    {
     "id": "m-77474f51d7",
     "name": "Crossroads Mall",
     "city": "Omaha",
     "state": "NE",
     "score": 5.5,
     "why": [
      "opened 1960",
      "closed 2020",
      "same strategy: redevelop"
     ]
    },
    {
     "id": "m-81f2d5ca53",
     "name": "Eastland Center",
     "city": "Harper Woods",
     "state": "MI",
     "score": 5.5,
     "why": [
      "opened 1957",
      "closed 2021",
      "same strategy: redevelop"
     ]
    },
    {
     "id": "m-9469ca71a1",
     "name": "Monmouth Mall",
     "city": "Eatontown",
     "state": "NJ",
     "score": 5.5,
     "why": [
      "opened 1960",
      "closed 2024",
      "same strategy: redevelop"
     ]
    },
    {
     "id": "m-3bcd4087ca",
     "name": "Northgate Mall",
     "city": "Durham",
     "state": "NC",
     "score": 5.5,
     "why": [
      "opened 1960",
      "closed 2020",
      "same strategy: redevelop"
     ]
    },
    {
     "id": "m-b6f36e3f08",
     "name": "ShoppingTown Mall",
     "city": "Dewitt",
     "state": "NY",
     "score": 5.5,
     "why": [
      "opened 1954",
      "closed 2020",
      "same strategy: redevelop"
     ]
    }
   ],
   "method": "size, era, strategy, status, type, state, distance"
  }
 },
 "parcels": [],
 "url": "https://retrofitatlas.org/other/canada/markham-buttonville-municipal-airport/",
 "photo": null,
 "provenance": {
  "year_opened": "newtypes-extraction",
  "year_closed": "newtypes-extraction",
  "status": "newtypes-extraction",
  "after_notes": "newtypes-extraction"
 },
 "links_out": [
  {
   "group": "reference",
   "label": "Wikipedia article",
   "url": "https://en.wikipedia.org/wiki/Buttonville,_Markham",
   "why": "the encyclopedia article for this site (CC BY-SA)",
   "from": "site.wikipedia",
   "rel": "noopener"
  },
  {
   "group": "reference",
   "label": "Wikidata item Q5003113",
   "url": "https://www.wikidata.org/wiki/Q5003113",
   "why": "the structured-data item: identifiers, coordinates, images, other-language articles",
   "from": "site.wikidata_qid",
   "rel": "noopener"
  },
  {
   "group": "reference",
   "label": "Wikimedia Commons photos within 500 m",
   "url": "https://commons.wikimedia.org/w/index.php?title=Special:Search&search=nearcoord%3A500m%2C43.86111%2C-79.36111&ns6=1",
   "why": "a Commons geo-search around the point; licences vary by file",
   "from": "site.lat/lon",
   "rel": "noopener"
  },
  {
   "group": "reference",
   "label": "Retrofitting Suburbia (book site)",
   "url": "https://www.retrofittingsuburbia.com/",
   "why": "Ellen Dunham-Jones and June Williamson's book and case studies, the research this database is built on",
   "from": "constant",
   "rel": "noopener"
  },
  {
   "group": "place",
   "label": "Google Maps",
   "url": "https://www.google.com/maps/search/?api=1&query=43.86111%2C-79.36111",
   "why": "the point on Google Maps",
   "from": "site.lat/lon",
   "rel": "noopener"
  },
  {
   "group": "place",
   "label": "Street View",
   "url": "https://www.google.com/maps/@?api=1&map_action=pano&viewpoint=43.86111%2C-79.36111",
   "why": "the nearest Street View panorama",
   "from": "site.lat/lon",
   "rel": "noopener"
  },
  {
   "group": "place",
   "label": "Bing Maps",
   "url": "https://www.bing.com/maps?cp=43.86111~-79.36111&lvl=17",
   "why": "the point on Bing Maps (Bird's eye where available)",
   "from": "site.lat/lon",
   "rel": "noopener"
  },
  {
   "group": "place",
   "label": "Apple Maps",
   "url": "https://maps.apple.com/?ll=43.86111,-79.36111&z=17&q=Buttonville%20Municipal%20Airport",
   "why": "the point on Apple Maps",
   "from": "site.lat/lon",
   "rel": "noopener"
  },
  {
   "group": "place",
   "label": "OpenStreetMap",
   "url": "https://www.openstreetmap.org/?mlat=43.86111&mlon=-79.36111#map=17/43.86111/-79.36111",
   "why": "the point on OpenStreetMap",
   "from": "site.lat/lon",
   "rel": "noopener"
  },
  {
   "group": "place",
   "label": "Walk Score at this point",
   "url": "https://www.walkscore.com/score/loc/lat=43.86111/lng=-79.36111",
   "why": "Walk Score's walkability, transit and bike scores for the coordinates",
   "from": "site.lat/lon",
   "rel": "noopener nofollow"
  },
  {
   "group": "place",
   "label": "Transitland map",
   "url": "https://www.transit.land/map#17/43.86111/-79.36111",
   "why": "transit routes and stops from open GTFS feeds around the point",
   "from": "site.lat/lon",
   "rel": "noopener"
  },
  {
   "group": "place",
   "label": "USGS National Map",
   "url": "https://apps.nationalmap.gov/viewer/?center=-79.36111,43.86111&zoom=16",
   "why": "topographic and elevation layers from the USGS",
   "from": "site.lat/lon",
   "rel": "noopener"
  },
  {
   "group": "news",
   "label": "Google News: \u201cButtonville Municipal Airport\u201d",
   "url": "https://news.google.com/search?q=%22Buttonville+Municipal+Airport%22+Markham",
   "why": "news search for the site name and city",
   "from": "site.name + city \u2192 search",
   "rel": "noopener nofollow"
  },
  {
   "group": "news",
   "label": "Bing News: \u201cButtonville Municipal Airport\u201d",
   "url": "https://www.bing.com/news/search?q=%22Buttonville+Municipal+Airport%22+Markham",
   "why": "news search for the site name and city",
   "from": "site.name + city \u2192 search",
   "rel": "noopener nofollow"
  }
 ]
}