Temporary construction office in any district shall be located on the property to which it is appurtenant and shall be located twenty (20) feet from the lot line of any property zoned residential. The proposed location shall be approved by the Town Manager prior to the installation. The temporary construction office shall be allowed for a twelve-month period at the expiration of which time the applicant may request a further extension of time. Otherwise the construction office shall be removed at the expense of the owner.