A developer and his company have been permanently ordered to stop work on a seawall on a property on Pigeon Cove Harbor in Rockport that prosecutors said violated state environmental laws.

The defendants, Michael Rauseo and his company, The Landing Group Inc., have also been ordered to pay $10,000 in civil penalties and to bring the property into compliance with state laws by removing all illegal material.

The Landing Group has owned the 5.1-acre former Cape Ann Tool Co. property since 2014, town records show. Officials said Rauseo has unsuccessfully pitched multiple redevelopment ideas for the vacant land.

Essex Superior Court Judge Thomas Drechsler’s order, announced by Attorney General Maura Healey’s office Tuesday, resolves a September 2018 lawsuit the AG’s Office filed against Rauseo and his company, by finding that Rauseo altered wetlands and tidelands when he installed rebar in and poured concrete on a granite seawall to raise its height.

In his ruling, Drechsler agreed with the AG’s Office that Rauseo violated the state’s Wetlands Protection Act and Waterways Act as well as five orders and notices from the town of Rockport and the Massachusetts Department of Environmental Protection to cease the illegal work at the property. In court documents, Rauseo claimed the work was necessary to repair concrete caps on top of the granite that had crumbled over the course of successive storms and was not intended to raise the seawall’s height. The judge stated the Wetlands Protection Act does not contain an exemption for repairs for private seawalls, only ones “used in the service of the public” or to provide utilities.

“This defendant ignored several state and local orders to stop his illegal actions and important laws that protect our environment,” Healey said in a statement. “This order requires Mr. Rauseo to restore the wetlands and tidelands he altered in Pigeon Cove Harbor – a vital natural resource for the people of Rockport and the whole state.”