aye, apparently minimum pitch size is 105m by 68m (like SJP) The bin dippers pitch is only 100m in length, not sure about width but their whole ground is very compact, I mean it must be as SJP looks bigger but holds less.
Also, think you've got to have adequate space around the pitch (7m) which probably puts off the nufc owners consuming that space to bring the east stand and/or gallowgate further in to solve expansion problems (unless they demolish the first section of the milburn or leazes)