North Norfolk District Council's development committee will discuss separate proposals tomorrow for the North Walsham Lidl store, currently under construction, and the Holt Aldi supermarket which has not been built.
Lidl, on Yarmouth Road, is applying for permission to demolish the town's empty youth centre, on New Road, to extend its car park.
Aldi is seeking full planning permission for its Old Station Way store, next to the A148 by-pass, with a revamped building design.
If approved, it would have a sales area three square metres larger than the previous proposal which was granted full planning permission in September last year.
Both store applications have been recommended for approval by planning officers.
The altered Aldi design, including glass and railway-inspired brick features, has been submitted because the former Thaxter's wood yard plot was originally going to be a Co-Op.
Two dozen letters have been sent to the council about the plan, including 17 in support and six against.
Concerns include the 'huge glass box' and 'car showroom' design which objectors say is not in keeping with Holt's Georgian style. Supporters say the store is needed in the town.
Planning officers said the new application was an overall improvement for design and layout but Aldi should increase the Section 106 agreement money, given for town benefits, from £50,000 to £55,000.
Holt Town Council supports the proposal.
Lidl has already started demolishing the youth centre, which it bought from Norfolk County Council, to boost car parking spaces from 76 to 97.
North Walsham Town Council has not objected but wanted the sale money to go towards the town.
The district council planning report said: 'Officers would consider the former North Walsham Youth and Community Centre building is not the last of its kind in North Walsham and there is alternate provision of equivalent or better quality available in the area.'
It mentioned North Walsham Community Centre on New Road and the Atrium on Spenser Avenue.
The extended car park would also 'contribute positively to the vitality' of the town centre through 90 minutes' free parking.
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