Perini Building Company Builds 49-51 Commonwealth Avenue for The Beal Companies High-End Residential Condominium with Below-Grade Parking Unique to Boston's Back Bay
FRAMINGHAM, Mass--Perini Building Company, Inc. of Framingham, Mass. is engaged in the conversion of 49-51 Commonwealth Avenue, two adjoining four-story brownstones in Boston's historic Back Bay.
Developed by the Beal Companies, LLP of Boston; financed by Boston Federal Savings Bank; designed by CBT/Childs Bertman Tseckares, Inc.; and marketed by Otis & Ahearn Real Estate, the project will create a nine high-end residential condominiums with a unique 14-car below-grade, on-site parking garage.
Nos. 49 and 51 Commonwealth Avenue were built as single-family residences in 1877 and 1876 (respectively). The buildings, which recently housed the Simmons College School of Social Work, will be completely gutted and renovated.
In preparation for construction, Perini provided preconstruction services including budgeting, estimating, and site investigations. To construct the 14-car parking garage beneath the structure, Perini is using an extensive temporary excavation support system and is replacing the existing wood pile and granite block footings with a steel and concrete foundation anchored by 50-foot-deep mini piles. Construction plans also call for the property abutting the public alleyway behind the buildings to be excavated to the depth of the parking garage. A reinforced concrete-on-metal decking slab will serve as both the roof to the parking structure (extending to the public alleyway) and the base slab of a landscaped garden plaza.
Perini is responsible for the structural components of the project and is coordinating its work activities with Sea-Dar Enterprises of Boston, the firm responsible for upper level demolition, garden masonry, and interior finish/fit-out work under a separate contract with the owner. The project is scheduled for completion in January 2004.