Asda has revealed plans to expand its Old Kent Road store - just weeks after Tesco submitted proposals for a rebuild of its shop less than half a mile away.
Asda says that it will use the extra space to expand its non-food range, including George clothing, music, video, kitchen and tableware, car care products and electricals.
The mezzanine deck – which would add 3 metres to the height of the building – would be linked to the ground floor with a travelator.
The company estimates that the proposed extension would create an additional 100 jobs.
A separate planning application proposes the creation of a double-deck car park with an extra 168 spaces, providing parking for a total of 502 vehicles.
The car park proposal has already prompted an official objection from Southwark Cyclists: "The area is very well-served by public transport and more private cars should not be encouraged," writes coordinator Barry Mason.