Basically any new, remodeling, enlarging, altering, addition or demolition to buildings and structures will require a permit. Trade work, such as plumbing, mechanical/HVAC and electrical, require their own permits and must be obtained by state licensed personnel. Many construction repairs also require a building permit depending on the extent of the repair. There are some miscellaneous type projects that will require permits which include, but are not necessarily limited to fencing, driveways, decks over 30 inches in height, sheds exceeding 144 square feet, lawn irrigation systems, retaining walls taller than 24 inches, and some portable buildings. For clarification, please check with the Customer Service Assistants by calling 817-427-6300.