By Madeline Hughes mhughes@andovertownsman.com May 10, 2021 May 10, 2021 NORTH ANDOVER â A Boston-based firm is taking steps forward to redevelop the 77-acre Royal Crest Estates on Route 114 into a mixed-use property with more housing, retail space, restaurants and a hotel. "It's a very large piece of land and is underutilized," said Jim Keefe, a principal executive at Trinity Financial, the company working on the Royal Crest redevelopment. Trinity Financial has not filed any formal plans with the town, but has been working with town officials on the multi-step process to create a zoning overlay district to allow for the multi-use development. Voters would have to approve the changes to North Andover's zoning at a special Town Meeting in the fall.