(1)This section applies to any direction given under section 14 of this Act which—
(a)requires a person to take measures consisting of or including the construction, execution, alteration, demolition or removal of a building or other works ; and
(b)does not contain a statement that the measures are urgently required and that accordingly the direction is to take effect immediately.
(2)At any time before the end of the period of thirty days beginning with the date on which a direction to which this section applies is given, the person to whom the direction is given may serve on the Secretary of State a notice in writing objecting to the direction, on the grounds that the measures specified in the direction, in so far as they relate to the construction, execution, alteration, demolition or removal of a building or other works—
(a)are unnecessary and should be dispensed with ; or
(b)are excessively onerous or inconvenient and should be modified in a manner specified in the notice.
(3)Where the person to whom such a direction is given serves a notice under subsection (2) above objecting to the direction, the Secretary of State shall consider the grounds of the objection and, if so required by the objector, shall afford to him an opportunity of appearing before, and being heard by, a person appointed by the Secretary of State for the purpose, and shall then serve on the objector a notice in writing either—
(a)confirming the direction as originally given ; or
(b)confirming it subject to one or more modifications specified in the notice under this subsection; or
(c)withdrawing the direction;
and the direction shall not take effect until it has been confirmed (with or without modifications) by a notice served under this subsection.