Lafayette Parish, LA Fence Regulations: Retaining Walls (2026)
Key Facts
- Minimum setback
- 0 feet, any location
- Governing section
- Sec. 89-38(e)(4)b
- Permit required
- Yes, under adopted IRC/IBC
- Applies to
- City of Lafayette + unincorporated parish
Summary
Lafayette City-Parish's Development Code exempts retaining walls from setback requirements entirely, they can sit anywhere on a lot, right up to the property line, but construction still requires a building permit under the adopted IRC/IBC.
b. The features as conditioned and designated below may encroach into a required setback: ... Feature | Setbacks where encroachment is permitted | Maximum Encroachment | Minimum Setback From street or lot line ... Retaining Walls | Any | No restriction | 0 feet
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 65).
Full Breakdown
The Development Code's setback-encroachment table lists "Retaining Walls" as allowed in any setback location, with "no restriction" on encroachment and a "0 feet" minimum setback from any street or lot line (Sec. 89-38(e)(4)b): unlike fences or accessory structures, a wall can sit directly on the property line. This applies in both the City of Lafayette and the unincorporated parish under the Development Code's citywide reach (Sec. 1-3). A retaining wall is still a structure covered by the adopted International Residential and Building Codes (Sec. 26-91); a separate land-disturbance permit is skipped only when excavation for the wall is "authorized by a valid building permit" (Sec. 34-492(3)).
Violations & Fines
Building without a required permit is a Code violation citywide: a fine up to $500, up to six months imprisonment, or both, with each continuing day counted as a separate offense (Sec. 1-9).
Frequently Asked Questions
How close to my property line can I build a retaining wall in Lafayette Parish?
Do I still need a permit if there's no setback to meet?
Does this rule apply outside the City of Lafayette?
Sources & Official References
Other rules in Lafayette Parish
Compare Lafayette Parish to another location·View the Louisiana fence regulations overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.