Section 5 But not for more than 5 acres to one person; conditionally, that one dwelling-house be built, etc. for every half acre.

Provided always, that not more than five acres shall be granted to any one person, either in his own name, or to any other person or persons in trust for him; and that every such lease shall contain a condition that the lease shall be void, and the same is hereby declared void, if one dwelling-house at least, not under the value of ten pounds sterling, shall not be built within the space of ten years from the date of the lease, for each one half acre of ground comprehended in the lease; and that the said houses shall be kept in good, tenantable, and sufficient repair; and that the lease shall be void whenever there shall be a less number of dwelling-houses than one, of the value aforesaid, to each one half acre of ground, kept in such repair as aforesaid, standing upon the ground so leased.