Peter Wood DeWitt, of Southampton, NY and for more than 40 years of Carnegie Hill on the Upper East Side, died in New York City on Wednesday, September 7, at the age of 69. Born in Granby, MA to William and Gloria DeWitt, he was a graduate of Phillips Academy, Andover, where he won the Catlin Prize and the Weir Prize in classics, and the University of Pennsylvania, where he graduated with a master's degree in architecture. He was a practicing architect for over 40 years and early in his career also designed furniture. He was a partner at Beyer Blinder Belle, where he worked on a number of major projects in New York, including the first Barneys women's store, before establishing his own firm in 1992, Peter DeWitt Architects, which later became DeWitt Tishman Architects. The firm, which worked primarily in New York and New Jersey, received several accolades, including a 2005 Palladio Award in 2005. The firm's projects were profiled in a number of publications, including The New York Times, which credited the firm with helping to create a distinct riverfront skyline in Jersey City and Hoboken.

Peter traveled extensively, read voraciously, and loved musicals and designing new projects. A member of the AIA, he served on the Architectural Review & Historic Preservation Board for the Village of Southampton (NY) and also was involved with the Southampton Association scholarship program.

He is survived by his partner James Thomas, sister Hollis DeWitt Haley (Mark), nephew Benjamin Haley (Nicole), grandnephew William Haley, and many cousins.

In memory of Peter, donations may be made to the Southampton Association scholarship program or to the Granby, MA Church of Christ, memo: DeWitt Fund.

A graveside funeral service will be held at West Street Cemetery in Granby, MA on September 17 at 11:00 am.

Peter's family would like to compile memories of and stories about him. To submit one, email RememberingPeterDeWitt@gmail.com . For more information, please visit obrienfamilyfh.com