Football Federation Australia has moved to lock in ANZ Stadium for this year's A-League grand final should the Western Sydney Wanderers continue their impressive run and earn the right to host the decider.

It's a move that would almost certainly smash the record for the largest crowd at a domestic football game in Australia (55,436), with the FFA deep in discussions with ANZ Stadium about hosting the grand final on Sunday, May 1, as well as a potential blockbuster semi-final a week earlier.

The Wanderers are on top of the A-League table and the highest-ranked team at the end of the regular season has the right to the home ground for the grand final.

With Pirtek Stadium to be demolished in September, the Wanderers are on the lookout for a new home for at least the next two seasons and are believed to be eyeing a move to Sydney Olympic Park for their big-drawing matches.