Robert H. Baldwin, senior vice president of Paradigm Properties and head of its Urban Facilities Group, represented SBHA in the transaction. Mike Foley of Jack Conway Associates represented the Roman Catholic Archdiocese of Boston. Financial details of the deal were not disclosed.

The buildings, which total 45,000 sf, are located at 11-17 Mayhew St. in North Dorchester. Founded in 1998, SBHA is a middle and high school serving 340 students in grades five through 12 from 13 of Boston's neighborhoods. The school retained Paradigm's Urban Facilities Group, which manages real estate development, expansion, and disposition of facilities for nonprofit institutions, industrial businesses and divisions of state and local governments, for the redevelopment of the site.

Baldwin says the project involves a complete renovation of the two buildings as well as an addition of a connector between them. He notes that the renovations should be completed by next summer.