Debenhams – which opened at the retail park in 2012 – shut for good in May.
Plans have been unveiled for a food store at the empty unit – expected to create 77 full-time roles – but the name of the interested company is yet to be publicly revealed.
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This week, a spokesperson for Land Securities Group PLC – the firm which owns Ravenside Retail Park – said: “We are still in active discussions with an alternative brand to take the space at the former Debenhams store at Ravenside Retail Park.
“Talks are progressing well and we hope to be able to share more details soon.”
Peter Swallow, Destination Chesterfield chair, said: “The news that a retailer is being lined up for the former Debenhams site is a further boost to the town.
“Lockdown has shown us all how important the high street is for the local economy, social interaction and choice.
“It is important we all continue our support and love Chesterfield.
"Our passion and support for the high street has enabled us to attract another retailer.
“This is testimony to Chesterfield’s resilience and forward-thinking.”
Debenhams entered administration for the second time in April last year.
It had struggled for years as a result of rising debts and falling profits as more shopping moved online.
In January, fashion retailer Boohoo bought the Debenhams brand and website from administrators for £55million.
However, Boohoo did not take on any of the historic firm’s shops or its workforce.