WINSLOW — A stalled construction project at the police station could get moving again next week, but finishing the project will be costlier.

On Friday, representatives from the town and the contractor met with the State Fire Marshal’s Office to discuss the status of the project, which was halted Aug. 3 for lack of permit. Town Manager Michael Heavener said the meeting went “fairly well,” but he’s not sure how much the cost increase will be.

The project will be the subject of a workshop at 7 p.m. Monday at the Town Office, which is open to the public. Assistant Fire Marshal Rich McCarthy will be there to answer questions from the Town Council.

Construction began last month. The project is a one-story addition to the police station, which is in the basement of the Town Office. The company had received a building permit from the town but hadn’t applied for a permit from the fire marshal’s office. On Aug. 3, the state shut construction down.

The following week, the town applied for a permit. McCarthy reviewed the architectural plans and mailed a one-page summary of his findings, which Heavener received Monday.

McCarthy’s letter spelled out 16 items that “need to be corrected before a construction permit can be issued.” Some of the items are requests for more details in the plans, while other items address required revisions.

The required revisions range from simple to significant.

In minor cases, the plans must be altered to include exit signs and to make the police station’s kitchenette and locker rooms compliant with Americans with Disabilities Act codes.

In major cases, the plans must be revised to include an expanded fire-suppression system and, perhaps, an elevator.

The major changes are required by law. When an older building undergoes substantial renovation, the project also must include updates to comply with modern building codes. Because the police station is attached to the town offices, the Parks and Recreation Department and the fire station, areas throughout the complex need to be updated. Heavener said he was unaware of this requirement until recently.

The project’s original estimated cost was $638,000. After the work stoppage, the council approved another $68,000 in anticipation of the fire marshal’s decision about the sprinkler system, but they have not approved money for other changes.

Heavener said he couldn’t offer a ballpark estimate on the additional costs, but added the town is not required to make the building completely ADA-compliant during this project. Instead, the law states that updates can be capped at 20 percent of the project’s base cost.

In other words, if the base cost of the project is $700,000, the amount needed for additional updates is $140,00, which would bring the total cost to $840,000.

Heavener said the calculation is more complicated than that, however, because $700,000 does not represent the true base cost. Some of the costs in the original plan are already related to ADA compliance, so those items will be subtracted to determine the true base of the project.

If the cost of an elevator exceeds the 20 percent figure, the town would not be required to install it during this project. Also, some other updates might be given priority over an elevator, as determined by regulations form the federal government.

Heavener couldn’t say whether Peachey Builders would be able to calculate the true base cost in time for the workshop Monday.