It depends on the brand. As a general rule most UK brands (such as BHS, Next, M&S, H&M) are priced at an exchange rate of QR7 to £1. As the current rate is closer to QR5 to £1 clothes will be cheaper in the UK. On top of this retailers are discounting heavily in the UK because of the recession.

If you look at some French or Spanish brands (Zara) they are cheaper in Doha.