The local laws of any community vary by jurisdiction. Therefore, it is important to contact your city or county government to determine the type of ordinances and regulations employed for water-dependent zoning within that community. Definitions and acceptable practices can change between cities and counties. Consult with your local planning department to determine the specific local rules that will apply to your project, such as acceptable uses and height/setback requirements. Here is a list of some of the major city zoning ordinances in coastal Alabama, which you can consult for additional details:
City of Mobile
City of Fairhope
City of Gulf Shores
City of Orange Beach
Town of Dauphin Island
Town of Bayou La Batre