Recent happenings at Front Street Shipyard include a boat that was too heavy for the facility’s 165-ton travel lift, the launch of a luxury yacht designed partly after an old Italian roadster and continued work on a pair of new buildings.

Isabella & Ava, a fishing boat based out of Portland came to the Shipyard on Oct. 17 for maintenance but was turned away after it was discovered to be more than twice as heavy as the owner initially claimed.

According to Shipyard General Manager JB Turner, the steel-hulled trawler was said to weigh around 80 tons. In hindsight, Turner guessed that figure was closer to 180 tons.

Darrin Low, who was operating the shipyard’s travel lift at the time, said he had the boat partially out of the water when the scales attached to the hoist indicated the lift was within 10,000 pounds of capacity. He put the boat back in the water and it remained tied up in Belfast for several days.

According to Turner, Front Street Shipyard’s lift is the largest of its kind north of Cape Cod, so the next step for the fishing boat wasn’t obvious. As of Oct. 25, Isabella & Ava was gone. Turner said he believed the boat had headed back to Portland.

Passers by may have noticed a large, rectangular, wooden object on the the shipyard’s property, near Front Street, encasing what appears to be a giant dinghy. It’s been there since the summer and it’s a mold for a fiberglass hull.

According to Turner, hull molds are not an especially common sight at boatyards.

The boat it was used to build — a 42-foot yacht called Lionheart Concerto, owned by Ken Sawyer of Cushing and New York City — is not so common either, incorporating an unusual hull design, aboveboard features based on the look of early 20th Century Bugatti roadsters, and a piano inside the pilothouse.

The yacht started as a collaboration between designer Bob Perry and Lyman-Morse Boatbuilding in Thomaston. Turner, who used to work at Lyman-Morse, said the boat was finished at Front Street Shipyard. The mold for the hull was designed so that it could be used again for a limited production run, Turner said, unlike many molds which can only be used once.

The shipyard’s largest building, a 22,000-square-foot, 55 foot tall building that will be used to service large vessels, has been going up rapidly over the past month. As of Oct. 25, the basic frame and much of the exterior sheathing were complete. Workers from Maine Coast Construction of Camden had started on the roof, interior insulation and framing for mezzanines that will flank the building’s two massive work bays.

Another new structure, connecting two of the Stinson Seafood-era warehouse buildings, is under construction by McCormick & Associates of Rockport. Turner said the existing steel frame would be sheathed in the dark green, corrugated metal siding that has been used on all new buildings at the shipyard, beginning sometime next week.