McCartney fell just short of the hat trick of awards for which she was nominated, losing out on the Red Carpet award, which she won last year, to Roksanda Ilincic, who has seen Emily Blunt and the Duchess of Cambridge wear her designs over the last twelve months.
ELLE favourite and three-time cover girl Alexa Chung won British Style Icon for the third year in a row.
Erdem collected the New Establishment award whilst shoe designer Nicholas Kirkwood won Accessories Designer of the Year.