A repair order—
(a) shall specify the building in respect of which the repair order is made; and
(b) may stipulate that the building concerned be vacated by all or any of its occupants—
(i) if the building is in a dangerous condition, forthwith; or
(ii) within a period of not less than thirty days;
until the building has been raised or restored to a satisfactory standard; and
(c) shall require the owner of the building concerned to do such work as may be specified in the repair order for the purpose of raising or restoring such building to a satisfactory standard; and
(d) shall determine the period during which the work referred to in paragraph (c) shall be commenced and completed.