The permanent home of Western Sydney Wanderers is set to be confirmed after the A-League franchise agreed to build a centre of excellence in Blacktown worth more than $18 million.

The Wanderers' long-term training base, offices and the location of their highly anticipated youth academy appears certain to remain at Blacktown International Sportspark. The venue's owner, Blacktown City Council, should confirm its part of the funding as early as Wednesday's council meeting.

The two parties have been in lengthy negotiations and reached an agreement in principle to build the Wanderers' elite training base and academy near their existing home. While a contract is yet to be signed, Fairfax Media understands that a deal appears a formality and the parties' lawyers are working through the finer contract details.

Under the proposal, the Wanderers will not own the land but will have exclusive use of a state-of-the-art complex funded jointly by the club, the council, as well as another local organisation.