---
title: Duluth UDC § 909.02 — Duluth
jurisdiction: duluth
governing_jurisdiction: Duluth
source_url: "https://www.duluthga.net/UDC_ADOPTED_9.8.2025_Amended_7-13-26.pdf"
effective_date: "2026-07-13"
as_of: "2026-08-13"
canonical: "https://www.gwindex.net/code/duluth/909.02"
licence: "CC0-1.0"
---

# Duluth UDC § 909.02

Lots

**Governing jurisdiction: Duluth.** A "Duluth, GA" mailing address is usually NOT in the City of Duluth. Unincorporated Gwinnett is 67.3% of the county's land area and is governed by a different code, a different board and a different permit portal. Resolve the governing jurisdiction before answering any zoning question.


- **Article:** 9 — Project Design and Construction Standards
- **Pages in source:** 254
- **Adopted:** 2025-09-08
- **Amended through:** 2026-07-13
- **Source:** https://www.duluthga.net/UDC_ADOPTED_9.8.2025_Amended_7-13-26.pdf

## Text

1. Lots should be designed generally such that they are no more than four times as deep as they are wide at
the building setback line, unless exempted by the Planning and Development Director.

a. The Department requires notation that a House Location Plan (HLP) is required to be approved

prior to issuance of a building permit on all residential lots.
b. The Department may require notation that a Residential Drainage Plan (RDP) is required to be

approved prior to issuance of a building permit on certain lots where additional (site specific)
engineering will be necessary to properly grade the lot or locate the building or other
improvements. Such lots include, but are not limited to:

i. A lot containing floodplain where fill or other encroachment into the floodplain is

planned or reasonably expected;
ii. A lot containing severe topographic features interdicting the building site;
iii. A lot containing a drainage easement with a pipe discharge or other facilities, or flow

characteristics which may adversely affect the location of a building or other site
improvements.
c.
The Planning and Development Department may require notation that a Residential Drainage
Study (RDS) is required to be approved prior to issuance of a building permit on certain lots
where particular attention to site grading will be necessary, but formal engineering is not
needed. Such an RDS is conducted in the field where the effect of the site grading must be
accomplished with adequate care so as not to create a drainage problem on neighboring
properties.
2. Side lot lines generally should be at right angles (90 degrees) to straight street lines or radial to curved
street lines as much as practical. Side lot lines should be radial to the radius points of all cul-de-sacs.
Variations of more than 10 degrees shall require approval of the Department but shall be approved when
appropriate to the reasonable loading pattern of the subdivision, efficient use of the land relative to
topographic conditions, or provisions of improved building sites over those which would result without
such variation.
3. Corner lots shall be sufficiently larger so that they have the same width between minimum side setback
lines as an interior lot, but in no case shall more than 75 feet between side setback lines on a corner lot be
required.