Billionaire retail entrepreneur Philip Green on Thursday reported sales growth at both his Bhs and Arcadia fashion groups over the key Christmas trading period.

Mr Green said same-store sales in the seven weeks to January 11 rose 1.3 per cent at Bhs and 2.4 per cent at Arcadia.

He revealed Arcadia's Top Shop and Top Man banners enjoyed double digit same-store sales growth but Burton and Wallis posted slight falls.

"This performance demonstrates the strength of our business in a competitive trading environment," he said.

"Although only 19 weeks into the current financial year, customer and sales response to new ranges, together with our leading brands, gives us confidence that we will deliver significant profit enhancement this year."