Pompey are targeting pitch work at their newly-funded Academy training facilities to begin from February.
Almost 5,500 supporters dug deep to reach Tifosy’s £250,000 figure late on Friday night – with a day to spare.
It is a staggering achievement from Blues fans, who raised £45,000 over Thursday and Friday alone to meet the challenge.
That consisted of £11,000 in five hours on Friday night, while another £7,500 was collected on Saturday despite having already reached the target.
The initiative closed last night with in excess of £260,000 raised – and now preparations are under way to spend it on the youth set-up.
Pompey chief executive Mark Catlin said: ‘This is what being a community club is all about and I would like to thank each and every person who enabled us to reach this total.
‘It once again demonstrates why this is the most incredible club in the world – with the best supporters in the world.
‘Nowadays at Pompey we pride ourselves on listening to ideas.
‘The next stage is working on the facilities and we have been speaking to the council for a few weeks now since we realised we were going to achieve this.
‘We are seeking for these two pitches to coincide with the existing lease at Roko.
‘The heads of terms have now been agreed with the council and it is at the solicitor stage.
‘Obviously, there is a difficulty getting pitch work carried out in autumn and winter, but we are pretty hopeful pitch seeding can be carried out in February and March time for next season.
‘In the meantime, preparatory work can be carried out, such as putting fences up.’