What the 752-Unit Braintree Project Is
The 752-unit Alexan Hollingsworth Pond proposal is a large multifamily redevelopment planned for 10 Plain Street in South Braintree. It is designed to transform a former industrial and commercial site into a major new housing development.
The $230 million project is being advanced by Trammell Crow Residential through Braintree Apartments Venture, L.L.C. In total, it would span about 845,000 square feet.
The development would include six four-story residential buildings. These buildings would contain studio, one-, two-, and three-bedroom apartments.
The plan includes 76 affordable units, which equals 10 percent of the total. That matches state affordable housing requirements.
The proposal also aligns with Braintree’s 2023 MBTA Communities Family Overlay Zoning District. This zoning framework supports multifamily housing near transit-served areas. The site sits within the town’s MBTA district and Plain Street revitalization area.
Construction is planned in two phases. The first phase would deliver five buildings and 427 units.
Community outreach has been part of the public review process. That has included Planning Board hearings and state environmental filing steps.
Where the Plain Street Apartments Will Be Built
At 10 Plain Street in South Braintree, the proposed 752-unit redevelopment would rise on a former industrial and commercial property targeted for large-scale residential reuse.
The site is described as a large tract with existing landscaping, mature trees, and established neighborhood surroundings.
Its setting suggests direct access to major roads, nearby services, and transit options. That could support future residents without pushing development far beyond the current built area.
In similarly tight housing markets, vacancy rates have fallen sharply as demand continues to outpace available rental supply.
Key Site Factors
- Positioned within an established residential district
- Framed by greenspace, walking paths, and mature trees
- Connected to nearby shops, restaurants, and transit
- Close to major highway access for regional travel
- Planned for dense housing on already-used land
The construction timeline is not detailed here.
Still, the location suggests a buildout intended to fit within a connected, service-rich part of the community.
What the Hollingsworth Pond Project Includes
Spread across roughly 30.66 acres, the Hollingsworth Pond proposal includes six four-story residential buildings with 752 units. At about 845,000 square feet of development, it would be one of the largest housing projects under consideration in the area.
Plans range from studios to three-bedroom apartments. The community would include 76 affordable units integrated with market-rate homes in a mixed-income layout.
The site would provide more than 1,100 parking spaces, along with a swimming pool, playground areas, and limited ancillary programming space within the buildings.
More than 53% of the property is set aside as open space. Native landscaping, tree preservation, and meadow areas are intended to support river habitat.
Public features include a riverwalk, fish ladder, west-side boardwalk, walking path, future trail connection, and pedestrian links. Together, these elements are designed to improve nearby community access.
The project arrives as investors continue to watch suburban growth trends and housing demand in expanding communities.
How the Project Fits MBTA Communities Zoning
Within Braintree’s 2023 MBTA Communities compliance framework, the Hollingsworth Pond proposal falls within the MBTA 2 Red Line South Overlay District at 10 Plain Street. Multifamily housing is allowed there by right under the town’s MBTA Multi-Family Overlay District.
The project supports Section 3A goals by adding new housing near public transit and commercial activity. It also remains consistent with the overlay zoning adopted in December 2023.
The site is located in one of four approved MBTA districts. Its underlying commercial zoning is modified by the multifamily overlay.
The proposal would redevelop vacant industrial and RMV property. Current plans meet dimensional standards and parking ratios.
Transit access reinforces the law’s goal of encouraging housing near stations. As the first application reviewed under this district, the project serves as a direct test of Braintree’s compliance approach.
What the Braintree Development Means Next
As the proposal moves from zoning validation into formal local review, the next phase centers on whether Braintree’s first major MBTA-overlay test can advance with staff conditions, environmental oversight, and traffic mitigation intact.
Planning Board site plan review, Conservation Commission oversight, and a January 13, 2026 mitigation meeting now define local governance.
The project would add 752 apartments, with 10% affordable, while replacing an obsolete factory site with energy-efficient buildings, green space, and trails.
| Focus | Near-term issue | Likely effect |
|---|---|---|
| Housing | 752 units, affordability | Broader options |
| Traffic | 178 AM trips | Limited strain |
| Environment | Green space, transit access | Lower emissions |
Private investment could expand the tax base, support construction jobs, and strengthen walkable development.
Community engagement will likely focus on parking, roadway operations, and whether review conditions preserve neighborhood confidence.
Assessment
The breakthrough on Braintree’s 752-unit apartment project closes a prolonged housing dispute and clears the way for a major residential expansion near Plain Street.
With approvals aligned to MBTA Communities zoning pressure, the Hollingsworth Pond development now shifts from legal and political conflict toward execution, oversight, and infrastructure impacts.
The project stands as a consequential signal that large-scale multifamily housing proposals in transit-linked suburbs may face resistance, but not indefinite delay.
