The youngster was called up into the England squad for the first time on Sunday after playing a large part in leading the London club to the top of the Championship this term.
Goal.com exclusively revealed at the end of October that Manchester United and Tottenham have joined the race to sign the Ivory Coast-born starlet, with Liverpool and Manchester City having previously led Arsenal.
|40/1||Wilfried Zaha is 40/1 with Bet365 to score anytime in a 3-1 England win over Sweden
"We absolutely do not want to sell Wilfried in January," Browett, who owns the club with fellow consortium members Steve Parish, Martin Long and Jeremy Hosking, told the London Evening Standard.
"If you finish bottom of the Premier League you get £60 million in prize money and, with parachute payments over four years, you're guaranteed £100m.
"It is such a massive amount that selling your best player when you have a good chance of promotion makes no sense at all. The figure of £20m has been talked about and that lets clubs know we are serious but he is not for sale."
Zaha joined Palace as a 12-year-old and has flourished through the club's academy, with Browett believing that a lot is owed to the staff at the club for the way he has developed.
"Wilfried is clearly a brilliant player, and a lot of the thanks for that has to go to our Academy and the manager there, Gary Issott," he added.
"His call-up is a great advert to parents of young children — if you want them to play and be given a chance, take them to Crystal Palace.
"I don't think he will be fazed by this as he has played more than 100 professional games for the club. He has played away at all the top Championship clubs and when we won at Manchester United last season he was superb."
|"His call-up is a great advert to parents of young children - if you want them to play and be given a chance, take them to Crystal Palace"
- Stephen Browett on Wilfried Zaha
Browett also called on England boss Roy Hodgson to continue to looking to the Championship for talented youngsters like Zaha.
"Only 34 per cent of players in the Premier League are English," he continued. "I think there is a prejudice among the England set-up toward Premier League players and I think they need to look beyond that.
"They need to do more to ensure they have the opportunity of getting these players. I haven't seen many English players who do what [Wilifried] can with the ball. He is a fantastic talent."