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Guilford County, NC Fence Regulations: Retaining Walls (2026)

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

Key Facts

Wall counts toward
Fence height
Drainage flow
Must not be impeded
Code section
UDO 6.4.E.4.a
Drainage rule
UDO 6.4.C.2
Structural walls
NC Building Code applies

Summary

Guilford County's UDO treats a retaining wall or berm under a fence as part of the fence's overall height. Fences may not impede the natural flow of water in any stream, creek, drainage swale or ditch.

City-specific rules exist: Greensboro, and High Point have their own retaining walls rules that differ from Guilford County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Fence height shall be measured in the same manner as buildings. However, where fences are located on retaining walls or man-made berms, the height of the retaining wall or berm shall be considered as part of the overall height of the fence.

Full Breakdown

Under UDO Section 6.4.E.4.a, where fences are located on retaining walls or man-made berms, the height of the retaining wall or berm is counted as part of the overall height of the fence, so a wall-plus-fence combination must still meet the 4-foot and 8-foot residential caps. Section 6.4.C.2 forbids fence construction that alters or impedes the natural flow of water in any stream, creek, drainage swale or ditch. Structural retaining walls above code-defined heights are also subject to the North Carolina State Building Code and may require a county building permit.

Violations & Fines

A retaining-wall fence exceeding height limits or impeding drainage is a nuisance subject to repair, replacement or removal by order of the Enforcement Officer.

Frequently Asked Questions

Does a wall under my fence add to the height limit?
Yes. Section 6.4.E.4.a counts the retaining wall or berm height as part of the fence's overall height for measuring against the ordinance limits.
Can a retaining wall block a drainage ditch?
No. UDO Section 6.4.C.2 says fence construction shall not alter or impede the natural flow of water in any stream, creek, drainage swale or ditch.

Sources & Official References

Other rules in Guilford County

All Guilford County rules

Compare Guilford County to another location·View the North Carolina fence regulations overview

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