Hogarth roundabout has been turned into a giant calendar as part of a promotional prize giveaway.
Drivers are no doubt doing double-takes as each day another door on the display reveals a festive message and a nudge to visit the Imagine Homes' website www.imaginehomes.co.uk/advent.
Every day until Christmas Eve the buy-to-let company will give away John Lewis gift vouchers worth up to £100.
Website visitors can click that day's virtual door to enter a prize draw.
Imagine Homes will begin building its new 17,000 sq ft showroom at Hogarth Roundabout this month with an estimated completion date of May 2008.