A copy of the complete plans and specifications for the erection or alteration of any permanent structure within the Village of Fox Point, including sewage disposal and water system, with all information necessary for the completion of the work, together with a statement of ownership and a survey of the property showing thereon the exact location of all existing and proposed buildings and systems, shall be filed with the Building Inspector, but no such work shall be commenced by any person without first receiving a permit from the Building Inspector, who shall issue or refuse such permit in writing within 20 days after proper application therefor.