Construction costs for Dartmouth’s new police headquarters are under budget, which is giving project officials needed leeway to add previously removed “wants” back into the building’s design.

At an April 17 meeting, the Police Station Construction Committee tasked with overseeing the construction of the department’s new Tucker Road headquarters building revealed construction costs are 10 percent under budget.

With costs under budget, officials hope to add components like granite curbing, masonry partitions, and more detailed landscaping into the design. The items, among others, were stripped from the project during a process known as “value engineering.”

It was performed to save money on the project without sacrificing the value or functionality of the police station last year after a cost estimate raised concerns of running over budget.

“Then 10 percent that we’re under bid is well in excess of anything we took out,” said project architect Greg Carell. “We were being cautious, and it was the right thing to do, but putting stuff back in still gives you a very good cushion moving forward.”

The committee voted to go with Delphi Construction as the project's general contractor. Out of five bidders, the company submitted the lowest bid. Delphi has offices in Waltham and Mashpee.

A notice of award of the project was sent out on Wednesday, and a notice to proceed with construction is expected to be sent around May 11.

In April, the Zoning Board of Appeals approved several variances required by the project. A period in which the decision can be appealed will pass by then, although Acting Town Administrator Greg Barnes said no appeals have been received so far.

A formal groundbreaking ceremony will be a topic at the committee’s next meeting, although nothing has officially been scheduled yet. Committee members suggested some time in May during the meeting.

The project is moving forward despite a snag with one of the sub-bids. An electrical subcontract will be re-bid on an accelerated timetable after there was confusion over legal language. Bids are expected to be in by May 9.

Voters approved a debt exclusion for the project last year. A debt exclusion is a temporary increases on property taxes which are earmarked for certain projects and initiatives. Town Meeting members subsequently gave the go-ahead to start construction.

The 21,800 square-foot police station will be built on a site on Tucker Road formerly occupied by the Gidley School. The school was demolished in preparation for the new station.

The department's existing headquarters building at 249 Russells Mills Road was closed in 2014 after an officer became ill with Legionnaires’ disease. The department moved into a modular unit housed in the rear of the property.