Hackney, in East End London seems to be the place for designer outlet shopping. There are a group of shops here, namely Aquascutum, Pringle of Scotland, Burberry and The Box which often have pop-up sales (the weekend I was there, it was all about Joseph).
The Aquascutum store here is not exactly super fashionable and hyper-trendy clothing but if you work in the dark-suit industries like banking and finance and need quality, professional clothes, then Aquascutum is your best bet. Trench coats which will last you forever, slacks, shirts, belts and accessories, you can find it all here without having to pay thousands of dollars or pounds.
The sales associates are not snooty at all and in fact are very friendly. read more