Chief executive Martin Perry appealed to Albion fans to stick with the club to help the "final push" towards getting a new stadium at Falmer.
On the day the Seagulls revealed their season ticket prices for next season Perry said the fans continued support was vital if Albion were to realise their dream of moving out of Withdean Stadium to a purpose built ground.
The cost of watching Albion is set to rise by four per cent next season but Perry hopes fans will still snap up season tickets to help fund the clubs quest to build a new home.
He said: "What weve done in the nine years we have been fighting for a new stadium has been beyond belief, two Championships and the production of an outstanding youth team.
"Everyone has been punching above their weight and I hope our marvellous fans will continue to do that with us.
"We have had massive support from them so far and my message to them, in the words of our old manager Micky Adams, is keep the faith so we can cross the finish line together."
Perry, in a joint letter with chairman Dick Knight, told season ticket holders:
"Your continued help and support is invaluable and why we are writing now to invite you to renew your season ticket for next years rollercoaster ride!"
There was both good news and bad news for fans regarding how much they will pay for season tickets next season.
The good news is the price has gone down but the bad news is it is based on 23 rather than 24 games as the Seagulls have included just the League fixtures and have counted out a cup game.
That means there is an increase of under four per cent pro-rata "to keep pace with our costs".
Fans can save themsevles money by snapping up tickets early.
If you buy one adult ticket in the North Stand by March 15 it will cost £495, a fiver down on last year.
That price would increase to £532 if applications are between March 15 and May 8 and £575 after May 8.
Prices start as low as £382 for adults, £224 for senior citizens and £212 for juniors in the East Stand and £17 for under-tens in the north east Family Stand.
A new student season-ticket is also available to NUS card-holders from just £277, while adult-and-child family tickets start at £422 for the season.
The club are currently sending renewal forms to existing season ticket holders. Those who have not received them by the end of next week can contact the ticket office on 01273 776992.
Applications for new season tickets will be invited after May 9 and there should be plenty up for grabs with Perry insisting the capacity at Withdean will increase to nearly 9,000 for next season.
The 900 new seats added at the western end for away fans, has allowed the club to offer 756 extra seats to home fans in the north east stand, the new Family Stand.
An additional 1,000 seats for home supporters will, say the club, be completed by the end of this season, meaning an additional 1,000 seats will be available for home supporters at the eastern end for next season.
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