Queen's Park Rangers moved another step closer to building its new training academy at Warren Farm after campaigners lost the right to launch a judicial review.
A high court judge rejected an application from Hanwell Community Forum on Tuesday last week to launch the review of redevelopment plans of the Southall sports ground.
The group was told to pay £2,500 in costs to Ealing Council, and now has 21 days to decide whether to appeal the against the decision.
Ealing Council welcomed the outcome and said it paved the way for a new sports complex for the public.
Campaigners say the council has severely undervalued the 61-acre site, at between £1.8million and £2.25m, and claim the 200-year lease at no rent is poor value for the borough.
Carolyn Brown, chairwoman of Hanwell Community Forum, who brought the case on
behalf of campaigners, said: “The decision was deeply disappointing, although not at all surprising.
“On the surface of it, the council appears to have done everything they needed to do in the process.
“However, consulting residents in only one ward, when the impact of the loss of these community playing fields will affect the whole borough, and holding key meetings before and immediately after the Christmas period, and during the August holiday period, were all actions that helped to ensure that it was as difficult as possible to challenge the council.”
Hanwell Community Forum requested the latest oral hearing after the high court in March rejected its initial application for a judicial review.
Chairman of Brent River and Canal Society, Nic Feriday, said: “Our overriding objection is our council is giving away our land to be fenced off and used by a private business.”
A spokeswoman for the council said: “QPR is investing millions of pounds into community facilities and a comprehensive community sports programme, which will significantly improve local people’s access to sport.
“We look forward to seeing this project get off the ground so that people can start using it as quickly as possible.”
According the council, the plans will result in QPR building a multi-million-pound community sports complex alongside its elite training facility.
The public sports complex will include football and cricket pitches, a new artificial turf pitch, multi-use games areas and changing rooms.
Ms Brown added: “We are looking at what else we can do.
“In the meantime, QPR cannot start work on the site until they have submitted, had approved and implemented a plan for archaeological assessment and recording of the site.”