Project for mixed-use building at Griggs Corner receives approval from Planning Board Palmer Square Management LLC has received final approval from the Princeton Planning Board to develop a 24-space metered parking lot into a mixed-use building. The parking lot on the corner of Witherspoon Street and Hulfish Street would be developed as a three-story, mixed-use building. Final site plan approval was granted by the board on April 8. Planning Board Chair Wanda Gunning, Vice Chair Louise Wilson, and Planning Board members Julie Capozzoli, Councilman David Cohen, Alvin McGowen, Jeffrey Oakman, Councilwoman Mia Sacks, Zenon Tech-Czarny and Phil Chao voted “yes” to approve the project, which would be constructed opposite the Princeton Public Library.