(3)The Board, before sanctioning the erection or re-erection of a building on land which is under the management of the Military Estates Officer, shall refer the application to the Military Estates Officer for ascertaining whether there is any objection on the part of Government to such erection or re-erection; and the Military Estates Officer shall return the application together with his report thereon to the Board within thirty days after it has been received by him.