Councillors are set to make a decision on final plans to develop Sugden Mill in Brighouse.
The multi-million pound regeneration scheme would see shops, a swimming pool and road bridge being built on the old mill site.
Now details of the 350-space car park layout and landscaping have been added before the planning committee discusses the application next month.
The site has attracted a great deal of controversy since Calderdale Council first agreed Elland company CDP would redevelop the land after the mill closed down in 1997.
But owners Younger Homes have fought the plans - hoping to build there themselves. One of the main sticking points for residents is the closure of Mill Royd Street.
Brighouse councillor Colin Stout said: "I'm delighted that we are making progress at last.
These detailed plans should allay people's fears regarding what is actually involved in the development and the stages it will be built in.
"I think people have been misled.
"A lot of concerns have been raised about the closure of Mill Royd Street, but it won't close until the road bridge is completed.
"I think it's going to be a lot better for the town and ease congestion.
"The development will also attract bigger shops to come to Brighouse who wouldn't normally because of the lack of floorspace."
The swimming pool will be built first, to replace the ailing Brighouse pool nearby. Then the old one will be knocked down, a road bridge built and finally the retail units, which are nearly 7,000 square metres.
It is hoped big retail names will be attracted to the town.
Meanwhile a public inquiry into a compulsory buy-up of the land needed for the multi-million pound development is to be held.
No date has been set but it is likely to be in the spring.
It follows allegations of fraud were made in October after some Brighouse residents received confirmation letters despite never having objected to the purchase orders.
Calderdale Police are still investigating the allegations.
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