No enactment regulating the use of commons, town or village greens, open spaces or allotments, and no enactment specially regulating any land of any of those kinds, prevents or restricts—
the doing of anything for Phase One purposes on land held by the Secretary of State or the nominated undertaker for those purposes,
the exercise of any right of entry under this Act (or the doing of anything pursuant to such a right of entry), or
the doing of anything in exercise of any other power under this Act.