The planning department's front entrance is now awash with computer-generated drawings and traditional architects' plans of the controversial project which it is hoped will kick-start the town's economy.
Constructors Dean and Dyball this week submitted a planning application for a retaining wall in the harbour to allow the eastern side to hold water at low tide.
The plans will now go before West Somerset District Council for its approval as a special item on the agenda after the planning meeting on August 24.
A new slipway will also be created on the western side on the harbour to replace the existing one which runs off of The Esplanade.
The eight-metre high retaining wall will be built from The Esplanade out to the East Wharf with gates to allow boats to pass in and out.
The anticipated 260-berth harbour will now be turned from commercial to leisure use following Dean and Dyball's testing on a scale model in a wave tank at Wallingford, near Oxford.
Roy Darny of Dean and Dyball said at Wednesday's meeting of Watchet Regeneration Partnership: "I think we have moved on quite considerably now. We have the harbour order and the six week judicial review starts now.
"We have made a planning application to West Somerset District Council and we have completed the physical testing.
"But there is computer testing still to be done on things like the harbour entrance, sill and the refuge where fishermen will go.
"The detailed design work has now started. If we get planning consent, we will start on the site around mid to end of October or early November."
Deputy Prime Minister John Prescott gave the go-ahead for the Harbour Revision Order in early May and Dean and Dyball forecast that the marina will be fully operational by next summer.
The marina has met with mixed reactions in the town since it was first conceived including a coalition of residents under the name SWAMP, and other individuals.
Once the marina is completed in 2001, an application will be submitted for homes to be built on the East Wharf.
l MP Tom King hands over the Harbour Revision Order - see Page 3.