Photo: The Town of Ajax · CC BY 3.0Within 25 km of Ajax, 5 places are on the heritage registers
The typical town keeps 18% of its homes from before 1961; here it is 7%. Heritage of the first rank begins 6.6 km away, in Pickering.
The registers find 5 places within 25 km of Ajax
They belong to 4 towns, chiefly Markham Village, Pickering and Oshawa. The nearest is Thistle Ha' Farm, 11 km away in Pickering. Among them are 2 National Historic Sites, 2 heritage railway stations and a provincial or municipal listing.
The 5 nearest, within 25 km
| Thistle Ha' FarmNational Historic Site · 1840–1871 · 11 km away, in Pickering |
| ParkwoodNational Historic Site · 1915–1941 · 14 km away, in Oshawa |
| Markham Village Town HallDesignated heritage property (part IV) · 1881 · 19 km away, in Markham Village |
| Former Canadian National Railway Station, Markham, OntarioHeritage Railway Station · 1871–1872 · 19 km away, in Markham Village |
| Canadian National Railway Station, Unionville, OntarioHeritage Railway Station · 1871–1872 · 23 km away, in Unionville |
Within 25 km of Ajax, the dated places belong mostly to the decades after Confederation
Places as far as 25 km from Ajax, not in it, dated by the first construction year on their records.
The oldest is Thistle Ha' Farm in Pickering, from 1840. Dated places within 25 km: 5. One goes back before 1867.
Ajax’s building boom came from 1981 to 2000: 36% of its homes
Ajax built little from 1961 to 1980: 16% of its homes, where most towns have 27%. 36% of Ajax’s homes date from 2001 to 2015, well above the typical 15%. New building is strong in Ajax: 5.5% of homes date from 2016–21, where most towns have 4.1%.
2021 Census, private dwellings by period of construction (Statistics Canada); the typical town is the middle Canadian town of 2,500 or more.
Ajax and its neighbours
| Town | People | Places | Highest | Oldest |
|---|---|---|---|---|
| Ajax | 141,111 | 0 | 0 | — |
| Pickering | 118,378 | 5 | 1 | 1840 |
| Whitby | 162,413 | 0 | 0 | — |
| West Rouge | 20,915 | 0 | 0 | — |
| Centennial Scarborough | 13,453 | 0 | 0 | — |
| Highland Creek | 12,678 | 0 | 0 | — |
| Oshawa | 213,592 | 2 | 1 | 1914 |
Ajax in brief
Its oldest homes, those from before 1961, are 7% of the total, against 18% in the typical town. For the rest, it has no historic place, against 6 for the middle town its size.
What this data can and can’t tell you
- Provincial and municipal lists. Provincial and municipal listings here come from Wikidata alone, since the provinces’ own registers can’t be reused; a listing needs an encyclopedia article to get a page.
- Protection. A National Historic Site designation recognises significance; it doesn’t by itself protect a building the federal government doesn’t own. Legal protection comes from provincial and municipal designations, whose own registers aren’t open data outside Québec.
- The grade. History is described, not graded, for every Canadian town.
- The federal register. Every federal designation is in Parks Canada’s directory, and the Canadian Register of Historic Places gives most of them a bilingual statement of significance.
- The tiers. Three tiers: the top for National Historic Sites, classified federal buildings and Québec’s classements, a second for the other federal designations, a third for provincial and municipal listings.
- People and events. Parks Canada’s open file gives its national historic persons no place. A town’s page names one only when the person was born there (matched by name and both life years) or one of its own historic places carries the name and its record speaks of them; national historic events stay off.
Questions about Ajax’s history
How many historic places does Ajax have on the registers?
Not within Ajax. Its nearest is a top designation: Thistle Ha' Farm, 11 km away in Pickering.
How old are the homes in Ajax?
Before 1961: 7% of its homes; the typical town has 18%.
Contains information licensed under the Open Government Licence – Canada (Parks Canada).
Sources: Parks Canada, Directory of Federal Heritage Designations · Canadian Register of Historic Places (federal extract) · Wikidata (CC0) for map points, other names and articles · Statistics Canada, 2021 Census (homes by period of construction). Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).