The common open space shall be used only for agriculture, woodlands, preserving the natural features of the site, or low-intensity recreation. Such uses shall not include rights-of-way (except easements for underground utilities), driveways, or parking areas, or tennis courts, swimming pools, or similar recreation development. Buildings related to allowed activities may be located in the common open space, provided that the footprints of such buildings shall not count toward the percentage of open space required by this article.