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Acworth, GA Building Setbacks & Zoning: Lot Coverage Limits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

R-1 / R-2
40% maximum impervious surface
R-3 / R-5
45% maximum impervious surface
RM-6 / RM-8
55% / 60% maximum
C-1 / C-2 / LI / HI
80% maximum
OP
70% maximum impervious surface

Summary

Acworth's Zoning Ordinance limits how much of a lot can be covered by buildings, pavement and other impervious surface: from 40 percent in the R-1 district up to 60 percent in RM-8, and as high as 80 percent in most commercial and industrial districts, under Table 73-3.5 of the dimensional standards.

Residential R-1 R-2 R-3 R-5 RM-6 RM-8 ... Maximum Impervious Surface Ratio (ISR, as percent of lot area) 40% 40% 45% 45% 55% 60% ... Non-Residential C-1 C-2 OP LI HI ... Maximum Impervious Surface Ratio (ISR, as percent of lot area) 80% 80% 70% 80% 80%

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 27).

Full Breakdown

A, the Required Residential Dimensional Standards, sets the 'Maximum Impervious Surface Ratio (ISR, as percent of lot area)' at 40 percent for both R-1 and R-2, 45 percent for R-3 and R-5, 55 percent for the RM-6 multi-family district, and 60 percent for RM-8. B, covering non-residential districts, allows 80 percent impervious coverage in C-1, C-2 and LI (light industrial) and in HI (heavy industrial), and caps OP (office professional) at 70 percent. 3(G) lists 45 percent for R-3. 5(A) notes topography, protected resources and off-street parking needs can restrict a lot below what the impervious surface ratio alone would allow, and a proposal cannot use the ISR figure to override a more restrictive use standard elsewhere in the ordinance.

Violations & Fines

Exceeding the district's maximum impervious surface ratio without a variance from the mayor and board of aldermen is a Zoning Ordinance violation, and building permits will not issue for site plans that show coverage above the Table 73-3.5 limit for the property's district.

Frequently Asked Questions

How much of my Acworth lot can I pave or build on?
Table 73-3.5.A ties the limit to the zoning district: impervious surface, meaning buildings, driveways and other hard surfaces, is capped at 40 percent of lot area in R-1 and R-2, 45 percent in R-3 and R-5, and 55 to 60 percent in the RM-6 and RM-8 multi-family districts.
What is the impervious surface cap for commercial property in Acworth?
Table 73-3.5.B allows up to 80 percent impervious coverage in the C-1, C-2, LI and HI districts, while the OP office professional district is capped at 70 percent.
Does Acworth's impervious surface limit override other zoning restrictions?
No. Section 73-4.3(A) states that if a specific use standard conflicts with a district's lot table, the use standard governs, so a stricter supplemental regulation for a particular use can cut coverage below the general Table 73-3.5 ratio.

Sources & Official References

Other rules in Acworth

Animal Ordinances: Chickens & LivestockSome RestrictionsSetback RulesSome RestrictionsStructure Height LimitsSome RestrictionsNoise Ordinances: Barking DogsSome RestrictionsFence Regulations: Neighbor Fence RulesLight RestrictionsFence Regulations: Material RestrictionsSome RestrictionsFence Regulations: Retaining WallsSome RestrictionsAnimal Ordinances: Breed RestrictionsSignificant Restrictions

All Acworth rules

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