5 county-level rules, plus city-specific rules for 4 cities in Cobb County, Georgia.
Verified from official government sources
Cobb County Stormwater Management Ordinance (Ch. 50, Art. VIII) requires post-development runoff to match pre-development for 25-year storm. MS4 permit (GAEPD). Water-quality volume treatment on all new development >1 acre disturbance.
Cobb enforces Georgia Erosion & Sedimentation Act via Ch. 50, Art. III. Land Disturbance Permit required for disturbance ≥5,000 sq ft. 25-ft undisturbed state-waters buffer (50-ft for trout streams, 75-ft for MRPA). Daily GSWCC inspections.
Not applicable — Cobb County is 250+ miles inland from the Georgia coast. Coastal Marshlands Protection Act and Shore Protection Act do NOT apply. Chattahoochee River corridor MRPA serves an analogous local-waters role.
Cobb County participates in FEMA NFIP with CRS Class 7 rating (15% flood insurance discount). All SFHA development requires county permit. 50% substantial improvement rule applies. Georgia DFirm maps used.
Cobb County Grading Permit required for earth movement over 5,000 sq ft or any work in setbacks/buffers. Drainage cannot be redirected onto adjacent properties (common-law nuisance). Retaining walls over 4 ft require engineered plans.
4 cities in Cobb County have their own environmental rules rules. Each link goes to that city's dedicated page with code citations.
See every category we cover for Cobb County — parking, noise, fences, fires, animals, pools, and more.
Cobb County Ordinance Hub →