One of South Boston’s most familiar institutional buildings is on track for a serious makeover. The former Marian Manor nursing home at 130 Dorchester St. is slated to become a 204-unit apartment complex dubbed The Manor, with a new off-street garage planned for roughly 160 to 165 cars and an affordable set-aside of about 18 percent, or roughly 30 to 40 apartments. The developer is pitching a full gut renovation of the campus and says a memorial to former residents will be built on site, with those plans set to be hashed out in community meetings this spring.
What the planning filing shows
According to the Boston Planning Department, the proposal would convert the Marian Manor campus into approximately 204 rental units, including about 37 income-restricted Inclusionary Zoning units and roughly 164 off-street parking spaces. The filings list the site as 130 Dorchester Street, with about 86,936 square feet of land and a gross floor area near 219,839 square feet. The project is currently in the Letter of Intent stage of the city’s Article 80 large-project review process, meaning the formal design and impact review is still ahead.
Who’s behind the proposal
As reported by Banker & Tradesman, local developer Giuseppe “Joey” Arcari and his Monarc Development group closed on the property earlier this year and are leading the reuse push. The outlet notes that Arcari secured mortgage financing for the deal and tapped Sousa Design Architects to craft a plan for reusing the campus’ mix of connected and stand-alone buildings.
How the site closed and what remains
The Carmelite Sisters for the Aged and Infirm filed formal closure notices with the Massachusetts Department of Public Health when Marian Manor shut its doors in 2024, according to the state’s closure filing. Records from the Boston Planning Department show the campus is made up of seven buildings that once operated as a single institutional complex, with some of the structures historically tied to nearby Carney Hospital operations.
Where this fits in Boston’s housing picture
The timing of the proposal is no accident. Boston’s housing pipeline has thinned out, with 2023 and 2024 marking the slowest years for new construction since 2011, according to data highlighted by the Boston Globe. Developers and city officials alike have pointed to rising construction costs and tighter financing as key culprits. In that climate, adaptive reuse projects like this one are increasingly seen as a way to add units without the full price tag of ground-up construction.
Developer’s take and memorial plans
Arcari told Boston.com that Marian Manor has been “a huge, huge piece of the South Boston community” and said he wants that legacy to carry through the renovation. He confirmed the redevelopment will go by The Manor and said his team plans to work with families of former residents and neighborhood groups to design a commemorative feature on the property as part of the Article 80 review. Exactly what that memorial looks like is expected to be a topic of conversation during upcoming public meetings.
Past legal dispute
According to Banker & Tradesman, the sale of the property did not happen overnight. A Land Court lawsuit filed by Triad Alpha Partners put the deal on ice until the case was dismissed after a 2025 trial, clearing the way for Arcari’s acquisition. Local coverage of South Boston development also notes that the letter of intent is now on file and that the development team has publicly pledged to conduct outreach before submitting a formal project notification, per Universal Hub.
What neighbors should expect next
With the letter of intent submitted, the next step is a round of community outreach before a full Project Notification Form lands on city planners’ desks, according to Boston.com. That filing will trigger public meetings, design reviews and any zoning relief requests the project needs. Those sessions are where South Boston residents can expect to weigh in on everything from the parking layout and traffic mitigation to the specifics of the planned memorial, before the proposal goes in front of city staff and the BPDA board for formal review.
