The maximum impervious area is defined as the building area allowed by zoning plus an additional 5% of the parcel. Impervious surfaces include structures and paved areas like sidewalks, driveways, and patios, unless made of materials that allow water to infiltrate at predevelopment rates.
Policy Details:
Locale: Mountain Brook, Alabama [Southeast]
Climate zone: Zone 3A: Warm Humid
Jurisdiction: Municipality [<50K]
Smart Surface(s): Permeable Pavement , Trees, Green Stormwater Infrastructure, Parkland, Habitat Spaces, Urban Meadows, Wetlands
Policy Type(s): City Code
Citation:
Mountain Brook, AL Code of Ordinances, Ch. 113, Art. III, Sec 113-228




