(1) Whenever the [Ad ministrator] is satisfied.-
(a) that any street laid out or altered by the Board has been duly levelled, paved, metalled, flagged, channeled, sewered and drained in the manner provided in the programme sanctioned by the '[Administrator] under section 24 or varied under section 27 or modified under section 29;
(b) that such lamps, lamps-posts and other apparatus as the local authority considers necessary for the lighting of such street and as ought to be provided by the Boardhave been so provided ; and
(c) that water and other sanitary conveniences have been duly provided in, such street;
the '[Administrator] may declare the street to be a public street, and the street shall thereupon vest in the local authority and shall thenceforth be maintained, kept in repair, lighted and cleaned by the local authority.
(2) When any open space for the purposes of ventilation or recreation has been provided by the Board in executing any housing scheme, it shall on.completion be transferred to the local authority concerned, by resolution of the Board, and shall thereupon vest in, and be maintained at the expense of, the local author ity. .
(3) If any difference of opinion arises between the Board and the local authority in respect of any matter referred to in the foregoing provisions of this section the matter shall be referred to the '[Administrator] whose decision shall be Final.