One Dalton: Four Seasons Hotel and Private Residences

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Lead Designers
Henry N. Cobb Roy G. Barris
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Two towers and a small park comprise this high-density mixed-use development adjoining Prudential Center and Christian Science Plaza in the Back Bay, defining the western terminus of Boston’s High Spine.

The Four Seasons Hotel and Private Residences—at sixty-one floors the taller of the towers—contains a 215-room hotel on its lower twenty floors and 174 residential condominiums on the forty floors above. Shaped as a soft triangle in plan and sheathed in low-reflectance high-performance insulating glass, the tower rises from a granite-and-glass podium containing the condominium lobby and the public rooms of the hotel.

Because the site is immediately adjacent to Prudential Center yet integral to Christian Science Plaza, its redevelopment presents a fascinating design challenge: namely, to consider how a tall building, together with the open spaces it frames, can respond creatively to the need for growth while showing appropriate respect for their historic urban setting in Boston’s Back Bay.

Show Facts

Southeast corner of Belvidere and Dalton streets, at the edge of Christian Science Plaza in the Back Bay


706,000 ft2 / 66,000 m2 gross area; luxury hotel with dedicated hotel lobby, retail, café, restaurant, ballrooms, meeting rooms, gym, and spa; residential condominiums with fireplaces, balconies on upper floors, private lobby with porte-cochère, commons room with accommodations for private dining, theater, kids' playroom, golf simulator, pet grooming


Carpenter & Company, Inc.

PCF&P Services

Architecture; exterior envelope; competition and concept design in collaboration with CambridgeSeven


LEED Silver Certified


American Architecture Award
Chicago Athenaeum, 2020

Design Award of Honor
Society of American Registered Architects, 2019

Architectural Design / Tall Buildings
Architecture MasterPrize, 2020

The Architecture Community: Global Design Award, Hospitality Projects
World Design Awards, 2020

Rethinking the Future Award: Large-scale residential
RTF Architecture Awards, 2020

Gold Key Awards: Best Luxury Guestroom
Boutique Design, 2020

One Dalton, with the 1970 administration building of the Christian Science Center, also by Pei Cobb Freed & Partners

Site plan, with 30 Dalton and the new park at left

View from St. Germain Street

Hotel entrance

Residential entrance

Residential entrance

Glass-screened incisions in the tower’s surface animate the building volume while accommodating operable windows on the condominium floors.

Typical floor plans: residences (top), hotel (bottom)

Terrace at duplex penthouse

Terrace at duplex penthouse

Project Credits

Collaborating Architect: Cambridge Seven Associates, Inc., Cambridge; Gary Johnson, Lead Designer; Structural: WSP USA, New York; Mechanical / Electrical / Plumbing: WSP USA, Boston and New York; Landscape: Michael Van Valkenburgh Associates Inc., New York and Cambridge; Images: Taehyung Park / Pei Cobb Freed & Partners, Pei Cobb Freed & Partners, Sami Matar