42. Inquiry and order.

(a) the lands benefited by the construction of the work;
(b) the increase in the value of such lands by the proposed construction;
(c) the amount of the betterment charges leviable on each of the said lands;
(d) the date from which such betterment charges shall be leviable:
(a) which is unsuitable for development as a building site, or
(b) which is situate beyond a distance of two hundred metres from the middle of the highway on either side.