7. For the purposes of an application under section 2 made jointly by two or more persons, each of whom is the registered freeholder of part of the land to which the application relates (“a part site”) section 11 is modified so that, in addition to complying with the requirements in section 11(3), in defining the extent of a commonhold unit, the commonhold community statement must provide for the extent of each commonhold unit to be situated wholly upon one part site, and not situated partly on one part site and partly on one or more other part sites.