He is the sixth person in the eight year history of the show to walk away with a quarter of a million pounds.
Paddy Roberts, 18, turned down a final offer of £140,000 but managed to hit the jackpot prize.
The Wigan teenager, who worked as an assistant in his mother's sandwich shop, said, "A lot of it is a blur but I remember that whilst waiting for Noel to open the box it was like my insides had frozen.
"Being on Deal or No Deal was the best experience of my life and I have made some lifelong friends."
At the beginning of the game, Paddy wrote down that he wanted to win £18,000 in order to realise his dreams of investing in a business and learning how to drive.
It was an uneventful start to the game and by the end of Paddy's third round, having taken out six blues and five reds, it seemed that he may have been close to dealing when The Banker offered him £17,000.
When that wasn't enough to tempt him, The Banker guessed that Paddy might have been aiming for £20,000 so offered him £19,999. Paddy remained resolute, convinced that he had the £250,000 on the table and was determined to continue.
After an all blue selection after which he turned down £40,000 and then eliminating all but the £75,000 and the £250,000 and declining a huge offer of £140,000, Paddy kept his original box and waited for host Noel Edmonds to reveal his winnings.
Noel opened the box, the confetti exploded and celebrations erupted for Paddy’s victory.
Since winning £250,000 on Deal or No Deal, Paddy is now learning to drive and has bought himself a car, plus he has donated some money to the charity which helped the son one of his fellow players who was diagnosed with cancer.
Paddy will be returning to catering college soon and hopes to fulfil his dream of opening his own restaurant.