Duluth UDC Table 2-B
Area Regulations by Zoning District
Governing jurisdiction
Duluth
Land inside these city limits is governed by Duluth's own code and boards. A "Duluth, GA" mailing address is not proof of being inside them — most such addresses fall in unincorporated Gwinnett.
Boundary: US Census TIGERweb (Incorporated Places, ACS 2025 vintage), vintage 2025.
- Article
- 2 — Use of Land and Structures
- Pages in source
- 52–53
- Adopted
- 2025-09-08
- Amended through
- 2026-07-13
- Source
- Adopted PDF
Verified. Re-verified 2026-08-14 cell-by-cell against rendered pages 52 and 53 at 175 dpi. PREVIOUS STATE WAS WRONG: 15 rows and quality=verified, but the stored rows were page 52 only - the extractor stopped at the page boundary and silently dropped page 53. The 5 missing districts were PUD, CBD (Residential uses), CBD (Commercial uses), RD and R-TH. PUD and CBD carry merged/multi-line cells; footnotes (7)(8)(9) are on page 53.
Text
Lot Width
Front Setback
Side Setback
Rear Setback
Height
(minimum, square
Lot size
Density
Lot Coverage
Lot Frontage
Zoning
District
(maximum,
dwelling units
per gross acre)
(maximum,
(minimum,
(minimum, feet)
(minimum, feet)
(minimum, feet)
(feet)
(minimum,
percent)
feet)
feet)(8)
feet)
RA-200
40,000
3
20
40
200
75, local streets
85, collector street or
major thoroughfare
15, interior side
35, exterior side
40
50
R-100
18,000 with sewage
25,000 with septic tank
3
45
40
100
30
10, interior side
25, exterior side
20
50
R-75
12,000
3
50
40
75
20
10, interior side
20, exterior side
20
50
R-50
7500
6
50
40
50
10
5, interior side
10, exterior side
15
50
RM
12,000
15
60
40
50
10
10, interior side
20, exterior side
20
50
MH
5,000
6
50
40
---
---
---
---
---
HRD
25,000
3
50
40
---
30
10, interior side
25, exterior side
40
50
C-1
---
---
80
40
---
10
10
15
50
C-2
---
---
80
40
---
10
10
15
50
HC-Auto
---
---
80
40
---
10
10
15
50
HC-Retail
---
---
80
40
---
10
10
15
50
O-I
---
---
60
40
---
10, from right-of -way
10
15
50
O-N
---
---
60
40
---
10, from right away
10
10
50
M-1
43,560
---
80
40
100
50, from right-of-way
20
15
50
M-2
43,560
---
80
40
100
50, from right-of-way
20
15
50
Article Two. Use of Land and Structures
Lot Width
Front Setback
Side Setback
Rear Setback
Height
(minimum, square
Lot size
Density
Lot Coverage
Lot Frontage
Zoning
District
(maximum,
dwelling units
per gross acre)
(maximum,
(minimum,
(minimum, feet)
(minimum, feet)
(minimum, feet)
(feet)
(minimum,
percent)
feet)
feet)(8)
feet)
PUD
Established by Master Concept Plan Approved by City Council (see Article 5)
Single-family:
Single-family:
Detached - 12
Attached - 12
Single-family:
Detached - 15
Attached - 15
Detached - 5 (7)
Attached- 5 (7)
CBD
(Residential
Townhouse: 10
---(9) (
18
---(9)
---(9)
---(9)
4 stories
Townhouse: 5(9)
End/corner unit: ---(9)
Townhouse: 12(9)
uses)
Apartment:
Apartment:
2 stories - 15
3 stories or more - 25
Apartment: 10
2 stories - 20
3 stories or more - 40
15,000 sq. ft. or less:
25’ (or 2 stories)
Greater than 15,000
sq. ft.: 4 stories
CBD
(Commercia
---
---
---
---
---
---
---
---
l uses)
RD
43,560
---
80
40
100
50, from right-of-
way
20
15
50
R-TH
1,800
8
80
40
22
Rear Entry - 10
Front Entry - 22
10, interior side
20, exterior side
20
50
(7) Zero between attached units and 10 feet side setback for corner lots.
(8) Exception: Minimum lot sizes on properties utilizing septic systems will be determined by the Gwinnett County Health Department.
(9) Exception: For residential development in the CBD zoning district, see Subsection 205., “CBD, Central Business District,” Paragraph (e), “Architectural and Design Guidelines, Residential Uses” for
dimensional requirements.
52 | P a g e
Table
| Zoning District | Lot size (minimum, square feet)(8) | Density (maximum, dwelling units per gross acre) | Lot Coverage (maximum, percent) | Lot Frontage (minimum, feet) | Lot Width (minimum, feet) | Front Setback (minimum, feet) | Side Setback (minimum, feet) | Rear Setback (minimum, feet) | Height (feet) |
|---|---|---|---|---|---|---|---|---|---|
| RA-200 | 40,000 | 3 | 20 | 40 | 200 | 75, local streets 85, collector street or major thoroughfare | 15, interior side 35, exterior side | 40 | 50 |
| R-100 | 18,000 with sewage 25,000 with septic tank | 3 | 45 | 40 | 100 | 30 | 10, interior side 25, exterior side | 20 | 50 |
| R-75 | 12,000 | 3 | 50 | 40 | 75 | 20 | 10, interior side 20, exterior side | 20 | 50 |
| R-50 | 7500 | 6 | 50 | 40 | 50 | 10 | 5, interior side 10, exterior side | 15 | 50 |
| RM | 12,000 | 15 | 60 | 40 | 50 | 10 | 10, interior side 20, exterior side | 20 | 50 |
| MH | 5,000 | 6 | 50 | 40 | --- | --- | --- | --- | --- |
| HRD | 25,000 | 3 | 50 | 40 | --- | 30 | 10, interior side 25, exterior side | 40 | 50 |
| C-1 | --- | --- | 80 | 40 | --- | 10 | 10 | 15 | 50 |
| C-2 | --- | --- | 80 | 40 | --- | 10 | 10 | 15 | 50 |
| HC-Auto | --- | --- | 80 | 40 | --- | 10 | 10 | 15 | 50 |
| HC-Retail | --- | --- | 80 | 40 | --- | 10 | 10 | 15 | 50 |
| O-I | --- | --- | 60 | 40 | --- | 10, from right-of -way | 10 | 15 | 50 |
| O-N | --- | --- | 60 | 40 | --- | 10, from right away | 10 | 10 | 50 |
| M-1 | 43,560 | --- | 80 | 40 | 100 | 50, from right-of-way | 20 | 15 | 50 |
| M-2 | 43,560 | --- | 80 | 40 | 100 | 50, from right-of-way | 20 | 15 | 50 |
| PUD | Established by Master Concept Plan Approved by City Council (see Article 5) | ||||||||
| CBD (Residential uses) | ---(9) | 18 | ---(9) | ---(9) | ---(9) | Single-family: Detached - 12 Attached - 12 Townhouse: 5(9) Apartment: 10 | Single-family: Detached - 5 (7) Attached- 5 (7) Townhouse: 10 End/corner unit: ---(9) Apartment: 2 stories - 15 3 stories or more - 25 | Single-family: Detached - 15 Attached - 15 Townhouse: 12(9) Apartment: 2 stories - 20 3 stories or more - 40 | 4 stories |
| CBD (Commercial uses) | --- | --- | --- | --- | --- | --- | --- | --- | 15,000 sq. ft. or less: 25' (or 2 stories) Greater than 15,000 sq. ft.: 4 stories |
| RD | 43,560 | --- | 80 | 40 | 100 | 50, from right-of-way | 20 | 15 | 50 |
| R-TH | 1,800 | 8 | 80 | 40 | 22 | Rear Entry - 10 Front Entry - 22 | 10, interior side 20, exterior side | 20 | 50 |