ROCKLAND, Maine — Construction on a five-story hotel here is expected to begin no later than Monday.

The city’s code enforcement officer issued a permit on Thursday for work to be done on the foundation for the project at 250 Main St., at its intersection with Pleasant Street.

Ron Dafoe from developer ADZ Properties LLC said he expects that the foundation work will begin Friday afternoon or Monday at the latest. The foundation will be enlarged to fit the building footprint, and added support will be placed in the existing foundation.

The foundation work is expected to take two to three weeks to complete, he said, and by that time, he hopes that the permit for the entire building will be issued.

John Root, the city’s code enforcement officer, said he has requested some information related to the permit for the building that he is reviewing for approval.

Dafoe said the plan is for the hotel to be open by July 4, 2015.

The hotel was approved by the Rockland Planning Board in June.

The ADZ project — its principal owner being Cabot Lyman of Lyman Morse Boatbuilding in Thomaston — will stand 57 feet high with an elevator shaft reaching 61 feet and solar panels that will increase the height to 70 feet.

The project is estimated to cost $2.9 million, with the hotel to feature 26 suites.

ADZ had received approval in October 2010 for a mixed retail, office and residential complex on the lot. The foundation was constructed in October 2011, but then the project — estimated to cost $2.4 million — encountered delays and the developer decided to pursue a hotel instead.