co.Galveston.Tx.Us/building --Do I need a residential Building permit to tear down old wood deck, and replace it with concrete slab enclosed patio (attached room added to house)? What else is needed, to be approved for Windstorm Ins. How can I be sure this contractor is doing things to code, whether permits are needed or not? (Friend of husband, supposedly alicensed contractor for 30 yrs in Galveston Co.