Environmental Rules in Mobile, AL (2026)
4 verified environmental rules for Mobile, Alabama, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Mobile requires site development plans to hold post-construction stormwater runoff to pre-development rates, certified by a licensed engineer and reviewed by the city engineer.
Mobile Stormwater Management Standards
Some RestrictionsMobile City Code § 17-7(c), (f)
Plans and supporting documentation shall be certified by a registered professional engineer licensed by the state that: The plans provide for proper drainage of the project according to sound engineering principles; and The post-development runoff rate does not exceed the pre-development runoff rate as established by the city engineer... The plan shall include provisions for a design that will ...
Erosion Control
Mobile requires land-disturbing sites to revegetate cleared ground within 10 days of substantial completion, using cover crop and mulch under an erosion-control plan enforced by the city engineer and permitting department.
Mobile Erosion & Sediment Control Rules
Some RestrictionsMobile City Code § 17-9(c)(1)
Any land surface from which the natural vegetative cover has been either partially or wholly cleared or removed by development activities shall be revegetated within ten (10) days from the substantial completion of clearing and construction... All reseeding must use an annual or perennial cover crop accompanied by placement of straw mulch or its equivalent of sufficient coverage to control eros...
Flood Zones
Mobile requires a floodplain development permit from the permitting department before any construction or land-disturbing activity begins in a city-identified or FEMA-mapped special flood hazard area.
Mobile Floodplain Development Permit
Some RestrictionsMobile City Code § 17-6(d)(1)
Establishment of floodplain development permit. Application for a floodplain development permit shall be made to the permitting department as required by the provisions of this chapter PRIOR to the commencement of any development in identified areas of special flood hazard and city-identified flood hazard areas within the city limits.
Flood Elevation Requirements
Mobile requires new construction in special flood hazard areas without mapped base flood elevation data to elevate the lowest floor at least 3 feet above the highest adjacent grade.
Mobile Base Flood Elevation Rules
Some RestrictionsMobile City Code § 17-26(11)
In special flood hazard areas without base flood elevation data, new construction and substantial improvements of existing structures shall have the lowest floor (for the lowest enclosed area; including basement) elevated no less than three (3) feet above the highest adjacent grade.(12)In the absence of a base flood elevation, a manufactured home must also meet the elevation requirements of sec...
Looking for Mobile County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Mobile city rules.
Environmental Rules in Mobile County →