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In the growing town of Milton west of Toronto, the low-rise Mountain View neighbourhood could soon see a dramatic transformation, as a brownfield site on the edge of its Natural Heritage System greenbelt is proposed to become a multi-phase community of mid-rise buildings. Neatt Communities has submitted applications for Mountainview West, featuring buildings up to 10 storeys, on the remediated former grounds of the Meritor Suspension Company.
Designed by Core Architects, the proposal would bring new height and density west of Martin Street and south of Steeles Avenue, close to the Halton Route 25 interchange with Highway 401. To the south of the site is the CP rail corridor, while Milton’s Downtown and GO station are close by to the east.
The vacant site spans approximately 20.8 hectares and includes multiple parcels including 150 Steeles Avenue East and 248 plus 314 Martin Street. The surrounding area is a mix of established low-rise residential neighbourhoods, commercial and employment uses, and institutional buildings, with the Sixteen Mile Creek Natural Heritage System land forming a green edge along its southwestern edge.
Meritor Suspension Co. operated for decades as an industrial facility before closing and leaving behind contaminated lands. Since 2023, it has been undergoing extensive remediation to support future development, including the creation of a new wetland along Sixteen Mile Creek.
The first phase proposes 1,083 residential units across nine blocks, including 1,001 apartments in five mid-rise buildings and 82 townhouses in two low-rise blocks. Building heights range from 3 (10.9m) to 10 storeys (37.8m), arranged to transition from taller forms at the centre of the site to lower-scaled townhouses adjacent to the existing Martin Street neighbourhood.
The total Gross Floor Area for Phase 1 would be 87,890m², resulting in a Floor Space Index of 2.17 times lot coverage. Residential use accounts for 87,731m², with a single retail space of 209m² planned on Block 5.
A network of new streets would structure the community and link it to Steeles Avenue and Martin Street. One new street would serve as the central corridor and future transit spine, while two would form an axis linking public spaces, with two more streets designed to support residential uses with a quieter streetscape.
Public realm features include a stormwater management pond with promenade, landscaped edges along the Natural Heritage System land, and early segments of a longer multi-use Valley Side Trail to be added to by others beyond the site. In total, Phase 1 would deliver 1.28 hectares of open space.
Across the apartment blocks, parking would be accommodated in two to three levels of underground garage. Plans entail 1,251 spaces for residents, 27 for visitors, and 11 for service or institutional uses. Bicycle infrastructure calls for 1,160 spaces.
Phase 2 would expand the community westward with additional residential blocks, retail offerings, and public spaces such as a Community Green, Civic Plaza, Gateway Green, and Valley Side Trail extension. Detailed plans for these blocks are to follow in future applications. There would be a Floor Space Index of 3.2 times lot coverage across both phases.
The site is about 2.5km from Milton GO station and within walking distance of several local bus routes. There are plans to extend the existing cycling infrastructure on Steeles Avenue to link with north-south bike corridors such as Wilson Drive and Thompson Road, while a proposed rail-side trail would connect the site to the GO station by bike within 10 minutes. For drivers, there is direct access to Highway 401 via Martin Street and the under-construction Tremaine Road interchange to the west.
Development activity around the site remains limited. Just southeast, a four-storey seniors rental building is planned at 248–250 Martin Street, while further southeast, 72 Ontario Street South is proposed at eight storeys. Higher-density growth is concentrated closer to Milton GO station. These include The Millhouse Condominiums, under construction with towers reaching 19 storeys, as well as proposals for 155 Nipissing Road and 560 Main Street East at 19 and 20 storeys, respectively. Stationside would rise to 23 storeys.
UrbanToronto will continue to follow progress on this development, but in the meantime, you can learn more about it from our Database file, linked below. If you'd like, you can join in on the conversation in the associated Project Forum thread or leave a comment in the space provided on this page.
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| Related Companies: | Core Architects, Urban Strategies Inc. |
