Ambitious non-league club Salford City will leave Moor Lane if they realise their aim to reach the Championship.
Salford, part-owned by five former Manchester United players, will on Thursday seek planning permission for a multi-million pound upgrade.
It will increase the capacity of their current ground from 2,163 to 5,172.
Salford say the work would be adequate for League One, which requires three promotions, but anything more could not be accommodated at Moor Lane.
The club have been promoted in successive seasons since a high-profile takeover involving Ryan Giggs, Paul Scholes, Nicky Butt and Gary and Phil Neville in 2014 and last year reached the FA Cup second round for the first time.