It shall be the duty of the Mayor to enforce the provisions of this Chapter. No building or other structure shall be erected, constructed, reconstructed or maintained, nor shall it be altered in such a manner as to prolong the life of the building or structure, nor shall the use of any land be changed without first obtaining a permit from the Board of Aldermen to be issued in accordance with the terms of this Chapter. No permit shall be issued unless there shall first be filed in the office of the City Clerk by the applicant therefor, information satisfactory to the Board of Aldermen which shall include a plan in duplicate, drawn to scale, correctly showing the location and actual dimensions of the lot or tract to be occupied, the dimensions and location on the lot of the building to be erected, constructed, reconstructed, enlarged or altered, with measurements from all lot lines to foundation lines of the building, together with a true statement in writing, signed by the applicant, showing the use for which such building or land is arranged, intended or designed; and no permit shall be issued by the Board of Aldermen unless such plan or information shall show that such building or land is to conform in all particulars with the provisions of this Chapter. A record of such applications and plans shall be kept in the office of the City Clerk. The Mayor shall have power to revoke any permit which has been issued, in case of violation of the condition of such permit.