Agreements with owners of property

20.  Subject to the provisions of this Order, and in connection with the powers granted to them thereby, the Council may enter into agreements with any owners of property or other persons interested in lands, houses or property with respect to the purchase by the Council of any such lands, houses or property or any rights or servitudes in, over or affecting the same for such consideration, being a sum of money in gross or a grant of land or partly money and partly land, as may be agreed upon between the Council and such owners orother persons.