It shall be unlawful to begin the excavation for the construction, the moving, alteration or repair, except ordinary repair as defined in the Building Code, until the Building Inspector has issued for such work a Building Permit, in accordance with the requirements of the Building Code and which includes a certification of his determination that the proposed work conforms to the Zoning Ordinance. The issuance of Building Permits will be withheld on single lot developments unless first platted and approved as required by the Planning and Zoning Commission in accordance with the Comprehensive Subdivision Ordinance and any other applicable ordinances of the Town and laws of the State of Texas. The term “single lot” shall be as defined in Comprehensive Subdivision Ordinance. Whenever any work for which a permit is required by this ordinance has been commenced without first obtaining said permit, a special investigation shall be made before a permit may be issued for such work. An investigation fee, in addition to the permit fee, shall be collected whether or not a permit is then or subsequently issued. The investigation fee shall be equal to the amount of the permit fee required by this ordinance. The payment of such investigation fee shall not exempt any person from compliance with all other provisions of this Ordinance nor from any penalty prescribed by law.