
Arista Homes, Deco Homes, Fieldgate Homes, Forest Hill Homes and State Building Group, Greenpark Group, Madison Group
4638 Major Mackenzie Drive East, Markham, Ontario
Unionglen is a freehold community of townhomes and single-detached homes taking shape at 4638 Major Mackenzie Drive East in Markham. With 118 homes ranging from about 1,840 to 3,249 sq ft, it's a family-oriented address in the heart of York Region.
The project brings together a group of established Greater Toronto Area builders, and homes are selling now ahead of an estimated December 2027 occupancy.
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Markham offers a deep bench of everyday conveniences and lifestyle draws, from major retail and dining to well-regarded schools and green space across York Region. As a fast-growing municipality, the area around Major Mackenzie Drive East continues to add shopping, services and community amenities that support family living. Specific nearby businesses and schools will be confirmed as the community develops.
Getting around from this part of Markham is anchored by Major Mackenzie Drive East, with connections toward Highway 404 and Highway 407 for commutes across York Region and into Toronto. GO Transit and York Region Transit serve the broader Markham area, giving residents regional rail and bus options in addition to driving.
Unionglen is a collaboration among several established Greater Toronto Area homebuilders, including Arista Homes, Deco Homes, Fieldgate Homes, Forest Hill Homes, State Building Group, Greenpark Group and Madison Group. These builders have long track records constructing residential communities across the GTA and York Region, focusing on freehold homes and master-planned neighbourhoods.
Buying pre-construction at a community like Unionglen usually begins by registering for early access, which puts you in line for information on floor plans and pricing before general release. Purchasing early in a release phase can matter because a builder may adjust pricing as phases sell.
Deposits on new freehold homes are typically structured in installments over time rather than paid all at once, with the schedule set out in your agreement of purchase and sale. Because these are freehold homes rather than condominiums, closing generally happens once the home is complete and ready to occupy, without the interim occupancy period common to condos.
Note that Ontario's statutory 10-day cooling-off period under the Condominium Act applies to new condominium purchases and does not extend to freehold homes. Review your agreement carefully and consider independent legal advice before signing.
Unionglen is a new community of freehold townhomes and single-detached homes at 4638 Major Mackenzie Drive East in Markham, Ontario. It comprises 118 homes built by a group of established GTA builders.
Prices currently range from $869,888 to $1,599,990 CAD. Pricing can change between release phases, so the builder will confirm current figures at the time of purchase.
Unionglen offers freehold townhomes and single-detached homes ranging from approximately 1,840 to 3,249 sq ft, suiting a variety of family sizes.
Occupancy is estimated for December 2027. Dates for pre-construction homes can shift, so the builder will provide updated timing as construction progresses.
The community is a collaboration among Arista Homes, Deco Homes, Fieldgate Homes, Forest Hill Homes, State Building Group, Greenpark Group and Madison Group — all established Greater Toronto Area builders.
It is located at 4638 Major Mackenzie Drive East in Markham, within York Region, with access to major roads and regional transit serving the Greater Toronto Area.
You can register your interest with the builder to receive information on releases, pricing and floor plans. Registering early can provide access to homes before broader public availability.
Information last updated July 9, 2026. Details are provided by the builder and may change without notice.
First access to pricing, floorplans, and availability — before the public.