
Castle Group Developments
1010 Dundas Street East, Whitby, Ontario
Harbour Ten10 Condominiums is a completed mid-rise project from Castle Group Developments in Whitby, part of Ontario's Durham Region. Rising five storeys, the building holds 115 suites and offers a smaller-scale setting than the high-rise condos found elsewhere across the GTA.
With construction finished and estimated occupancy in July 2024, the development is now at the selling stage, with suites available and ready for move-in.
Whitby offers the everyday conveniences of an established Durham Region community, with shopping, dining, and grocery options spread along its main corridors. The area combines suburban comfort with access to parks and recreation, giving residents a balanced setting for daily life. As a growing part of the eastern GTA, Whitby continues to see new retail and services arrive alongside its residential growth.
Positioned on Dundas Street East, a key east-west route through Whitby, the location connects easily to the wider Durham Region. Highway 401 runs through the southern part of the city for commutes toward Toronto and points east, while GO Transit serves Whitby with rail and bus service linking the area to downtown Toronto. Local Durham Region Transit routes round out getting around without a car.
Are you a real estate agent? Get commission details & broker portal access on LIQWD →
Castle Group Developments is the builder behind Harbour Ten10 Condominiums, focused on residential projects in the Greater Toronto Area and Durham Region. The company delivers mid-rise and community-oriented housing, and this completed Whitby condo reflects its work in the eastern GTA market.
Buying in a project like Harbour Ten10 Condominiums begins with registering for access to availability, pricing, and floor plans. Because the building is complete and now selling, the process can move faster than a typical pre-construction purchase, though it's still worth reviewing suite options and deposit expectations early.
Deposits on new condos are often structured in stages, though on a finished building the timeline to closing is shorter and interim occupancy considerations differ from a project still under construction. Your agreement will outline exactly what applies to your suite.
In Ontario, buyers of a new condominium unit have a 10-day cooling-off period under the Condominium Act. This gives you time after signing to review the agreement and disclosure materials, and to seek legal advice before your purchase becomes firm. Specific deposit terms and closing details will be confirmed by the builder.
Suites at Harbour Ten10 Condominiums start from $599,990 CAD and range up to $949,990 CAD. Pricing can change by release, so current availability and figures should be confirmed with the builder.
The building is a five-storey mid-rise condo with 115 suites. Homes range from 554 to 936 square feet, offering compact, low-rise living in Whitby.
The project is complete, with estimated occupancy in July 2024. Because the building is finished, move-in timing is generally sooner than for projects still under construction.
The development is at 1010 Dundas Street East in Whitby, Ontario, within Durham Region. Dundas Street East is a main east-west route, with Highway 401 and Whitby GO service nearby for travel across the GTA.
Harbour Ten10 Condominiums is built by Castle Group Developments, a builder active in the Greater Toronto Area and Durham Region focused on residential and mid-rise housing.
The building rises five storeys and contains 115 suites, giving it a smaller, mid-rise scale compared with high-rise condos in the region.
Interested buyers can register their interest to receive availability, pricing, and floor plan details. Since the project is selling and complete, the builder can confirm current suites and next steps.
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.