Fourteen out of 30 disused seafront arches at Ramsgate could be brought back into use under plans set out by Thanet council.
The local authority is to bid for £550,000 in EU funding to pay for the project.
Under the scheme, the arches would be restored and the rental income would be used to provide the council's share of the funding.
The council also said more arches could be restored if the plan went ahead.
Councillor Roger Latchford, cabinet regeneration spokesman, said: "The Military Road arches are a well-known sight along Ramsgate seafront and we'd like to see them all coming back into use."
He added: "Hopefully, if we're successful, we can see more of these beautiful arches being brought back into use and at the same time encouraging new marine businesses to be based alongside the harbour."
He said the harbour already generated scores of jobs, but business demand would grow, as the area saw more wind farms built.
This summer, Swedish energy giant Vattenfall has been putting the last of 100 turbines into place at the Thanet Wind Farm, off the Kent coast.