Terence Rumblow, of Tingley, was diagnosed with acute lymphoblastic leukemia when he was 16 and was treated at the Teenage Cancer Trust unit at Leeds Children’s Hospital.
Mr Rumblow, 25, was in hospital for three months as he underwent chemotherapy and radiotherapy treatment.
He was declared cancer free aged 19 and has continued to be fit and healthy since.
He is backing US charity fundraising platform Omaze as it launches its first UK based campaign – offering the chance to win a £1,000,000 house to raise funds for the Teenage Cancer Trust.
Mr Rumblow, who was treated on the Teenage Cancer Trust unit at Leeds Children’s Hospital, said: “I’ll always be grateful for the support I received from Teenage Cancer Trust at one of the toughest moments in my life.
"I had to stay in hospital for three months of chemo and was in a room on the Teenage Cancer Trust unit, with space for my family to stay over.
“The specialist units that Teenage Cancer Trust provide are world class; they’re like a home from home.
"The relationships and memories I made there will stay with me for all my life, and I will be forever grateful. I wish I could express into words how much being on that ward means to me.
“Teenage Cancer Trust relies on donations and they want to keep supporting young people through this crisis and beyond, which is why the funds raised through the Omaze house draw are so vital.
Omaze, which is championed by Hollywood stars including Danie Craig and Jennifer Lawrence, offers entrants incentives to support good causes - ranging from once-in-a-lifetime celebrity experiences to luxury prizes including super-cars and exotic holidays.
The £1 million dream home in Cheshire comes with a hot tub, with all costs covered for the first year.
People can enter via post or buy multiple entry bundles online at omaze.co.uk - starting from just £10.
There will also be 2,000 runner-up prizes including a Tesla Model 3 Long Range, one of the first Mini Cooper S Electrics and a £10k Home Tech Hamper.
Omaze has already raised more than £3 million for good causes across the UK, including a £1.1million donation that enabled the building of children’s hospice Julia’s House in Dorset, which came from an Omaze partnership with Robert Downey Jr and Guy Ritchie.
It has also previously linked up with big-name British talent including Benedict Cumberbatch, the Spice Girls and Emilia Clarke.
Draw entries are now available at www.omaze.co.uk and the Omaze Million Pound House Draw is open until midnight on Thursday 12th November 2020.