New entrances are planned for the Arndale Centre as part of the £85 million extension.
A new planning application to create contemporary glass entrances to the centre has been put in to Eastbourne Borough Council.
The shopfronts and facades of the existing centre will be upgraded to be in keeping with the style of the new entrances.
Work on the west entrance, closest to the station, and the centre façade along the western end of Terminus Road, will be carried out this year in advance of the demolition work for the extension, which is scheduled for early 2016.
The 170,000 sq ft scheme, arranged over two floors, will contain an additional 22 retail units and seven restaurant units, as well as a multi-screen digital cinema and significant extension to the car park.
Earlier this month, it was announced that Next will be the third major anchor for the scheme that has also signed up H&M and Cineworld.
Michael Barrie at Legal & General Property said, “The new entrances to the shopping centre have been designed to mirror the design of the extension.
“With work on the west entrance expected to start this year, it means that local people will get an early taste of what their new centre is going to look like.”
The news comes as workmen began fencing off the Gildredge Pub site on the corner of Terminus Road and Ashford Road.
The former hostelry is expected to be demolished to make way for a new entrance to the extended centre opposite the station.
It is believed H&M, the cut price clothing retailer, will take up the prime position at that end of the centre.
Clothes and homeware chain Next was recently announced as the third major anchor store.
Although Next already has a store in the centre, it currently occupies a unit which will be demolished during the extension work.
But the company has taken out a 10-year lease for a 21,000 sq ft store in the new retail and leisure extension at the centre.
Economists and politicians hope the revamp will set off a ripple effect and kick-start further regeneration of the town centre.
The revamp is expected to create the equivalent of 650 new full-time jobs and observers have described the build as a generation defining opportunity for the town.