Sorry if I've missed this, but is it being filmed at a flat in Brighton or a proper studio?
The pics look like a studio to me.
Although I haven't seen any episodes of this show myself yet, I would assume that if it's in a flat, they'll have done some sort of studio conversion with it, similar to the way the former Lock Keepers Cottages at Old Ford Lock in East London was converted for use as The Big Breakfast House back in the early 90's.
"The Not-So-Late-Show with Greg Mitchell" Tuesdays 4-6pm on Roch Valley Radio - rochvalleyradio.org.uk
(Until further notice!)