(3)where the owner or the person for whom the work is done fails to show cause to the satisfaction of the Secretary, the Secretary may confirm the order or modify the order to such an extent as he may think fit to make and such order shall then be binding on the owner or the person for whom the work is done and on the failure to comply with the order, the Secretary may himself cause the building or part thereof, demolished, as the case may be, and expenses thereof shall be recoverable from the owner or such person.
