British Fashion Awards: Stella steals the day brought to you by Fashion One

Stella McCartney took home two top prizes at Tuesday's British Fashion Awards. The London-based designer and daughter of Beatle Paul McCartney was named Designer of the Year and Designer Brand 2012 at the awards, held at the luxury Savoy hotel.

Stella McCartney has had one hell of a 2012: first her time in the spotlight this summer as designer of the Olympic and Paralympic uniforms and Team GB kit, then a series of successful runway collections shown in Paris, and the announcement this fall that the brand has seen substantial growth from 2011 to 2012 -- sales were up 19 percent to £21 million ($34 million).

The year will have ended on a high, as McCartney was announced as the winner of two major gongs at the 2012 British Fashion Awards. Stella picked up Designer of the Year and then took to the stage again to accept the Designer Brand 2012 on behalf of her namesake label.

McCartney shared an anecdote with the attendees regarding the label's origins after she left an unnamed Parisian design house (most likely the Chloé label she headed from 1997 to 2001) where she had been told by a"top man at this brand" that she would fail. As the Telegraph reported, it was this challenge that spurred her on: "I couldn't be more determined to prove him wrong. And with this award I feel like I am at the start of doing that."

Hosted by Gemma Arterton and Nick Grimshaw, the awards welcomed stars from around the world including Amber Valletta, Valentino, Manolo Blahnik, the UK Prime Minister's wife Samantha Cameron, Alexander McQueen creative director Sarah Burton, Christopher Kane and Alexa Chung.

Young catwalk star Cara Delevingne took home the prize as Model of the Year, beating off competition from Jourdan Dunn and D&G man David Gandy. The 20-year-old Delevingne burst onto the scene this fall, walking in shows by Burberry, Chanel, Dolce & Gabbana, Fendi, and Stella McCartney.

Menswear Designer 2012 went to Kim Jones, former designer at Dunhill and now in charge of the men's collections at Louis Vuitton.

Full list of winners:

Designer of the Year- Stella McCartney
Designer Brand - Stella McCartney
Special Recognition - Harold Tillman
Outstanding Achievement in Fashion - Manolo Blahnik
Isabella Blow Award for Fashion Creator - Professor Louise Wilson
Accessory Designer - Nicholas Kirkwood
New Establishment - Erdem
Menswear Designer - Kim Jones
Emerging Talent Award - RTW - J.W.Anderson
Emerging Talent Menswear - Jonathan Saunders
Emerging Talent Award Accessories - Sophie Hulme
Model - Cara Delevigne
Red Carpet Award - Roksanda Ilincic
British Style Award - Alexa Chung