(1) After the expiration of six months from the date on which a control order was made and from time to time—
(a) the authority, after giving the owner or occupier concerned and, if the control order was made at the instance of a resident, that resident; or
(b) the owner or occupier, after giving the authority concerned and, if the control order was made at the instance of a resident, that resident;
seven days written notice of intention to do so, may apply to the housing court for the control order to be varied or revoked.
(2) Upon an application made in terms of subsection (1) the housing court may, subject to this Part—
(a) if it considers that the circumstances in which the control order was made have since changed, vary or revoke the control order; or
(b) refuse the application.