The new Four Seasons Private Residences One Dalton Street, Boston will be a part of Carpenter & Company’s 61-story, $700 million tower to be built in the Back Bay on a site between the Christian Science Plaza and the Prudential Center.

The tower, designed by Henry Cobb of Pei Cobb Freed and Gary Johnson of Cambridge 7 Associates, will include a 215 room luxury hotel occupying the lower 20 floors, as well as 160 private residences above. Cobb is one of the world’s leading architects, known locally for the John Hancock Tower, and Johnson is the architect of Carpenter’s Charles Hotel and Liberty Hotel. The tower will be the tallest residential building built in New England since the early 1970’s.

Richard L. Friedman, President and CEO of Carpenter & Company said, “I view this project as an opportunity rarer than once in a lifetime. We have a simple goal – the finest design and absolute highest quality for this iconic landmark project. We aspire to build a hotel and residences of a quality never seen before in Boston and Four Seasons is absolutely the perfect brand to partner with in that regard. There is no better hotel and residential operator in the world.”

In addition to the 215 rooms and suites, the property will feature a five star restaurant and bar, a fitness center with indoor lap pool and signature spa.

Allen Smith, Four Seasons President and CEO Four Seasons Hotels and Resorts said, “We are delighted to manage a second hotel in Boston; we believe the second Four Seasons will complement and enhance the fabulously successful hotel we’ve had for decades on Boylston Street overlooking the Public Garden. It is rare for us to have two hotels in one city and we only do it in the most important gateway markets.”

The First Church of Christ, Scientist selected Carpenter following a national competition and an extremely thorough community process as well as years of planning and public approvals. “We worked very hard to create a process to ensure that this would lead to a wonderful addition to the community contributing to our ongoing stewardship of the Plaza for the long term,” said Robert Herlinger, Chief Architect for the Church.