The ground that has been graced by the likes of England World Cup winning trio Bobby Moore, Sir Geoff Hurst and Martin Peters, Billy Bonds, Sir Trevor Brooking, Julian Dicks and more recently Paolo Di Canio and Carlos Tevez will be demolished when the Hammers move down the road to the Olympic Stadium.
Next season is being dubbed 'Farewell Boleyn' by the club and interest in season tickets, which will be limited to around 26,000 due to Premier League rules and the ground's capacity, is expected to reach an all-time high.
Every West Ham fan wants to be able to say they were there for the last game at Upton Park. They, and the club, know the only way to do that is by securing a season ticket.
But current season ticket holders now have just 24 hours to renew their seats if they haven't already done so - a full two and a half months earlier than they would be expected to in a normal season.
Supporters have three options available to them ahead of the deadline at 5pm on Friday. They can pay in full for their tickets, pay a non-refundable £75 deposit which would come off the balance due by May 31st or apply to pay by monthly installments with a finance option.
What many supporters don't realise is that if they choose to pay the £75 deposit, which can be done online as well as over the phone, the remaining balance has to be paid over the phone or in person at the club. No online option will be available.
With demand set to be unprecedented, supporters are being warned to act quickly by the Hammers' official website.
"Time is running out for season ticket holders to guarantee their seat for the final season at the Boleyn Ground," the club website reads.
"Please note that any season ticket holder who misses the above deadline risks losing their seat, with additional sales to begin the following morning. With that in mind, anyone submitting a postal application must ensure its arrival by 5pm on Friday April 17th.
"As an added benefit, renewing season ticket holders will also have the opportunity to apply for two additional season tickets or request relocation across the weekend of April 18-19."
For the club's Band 1 supporters there is also an added complication heading into the last season at the Boleyn. That's because Band 1 season ticket holders will receive an appointment to reserve a seat at the Olympic Stadium as part of the club's migration process which will begin after the renewal deadline onwards. When those supporters attend the club's reservation centre in Stratford they must pay 25% of their 2016-17 season ticket in order to secure their seat.
The club has consulted fans on the migration throughout what is an extremely difficult and drawn-out process. But for those who have left it late, the clock is ticking.