Raleigh, NC Fence Regulations: Retaining Walls (2026)
Key Facts
- Height cap near ROW
- 10 ft continuous, uninterrupted, above grade/curb
- Applies within
- 30 ft of a public right-of-way
- Step-back rule
- 2 ft setback per extra 10 ft height
- Landscaping trigger
- Type C2 Street Protective Yard at 10 ft
- Exemptions
- Culvert, stream-crossing, and bridge overpass walls
Summary
Raleigh caps street-facing retaining walls at 10 feet unless they step back. UDO Sec. 7.2.8 limits a freestanding retaining wall within 30 feet of a public right-of-way to a continuous, uninterrupted 10-foot height above grade or curb; taller walls need a 2-foot step back for every additional 10 feet, and any wall reaching 10 feet triggers a required Type C2 Street Protective Yard.
Retaining Walls Retaining walls that are generally parallel to, facing towards, and located within 30 feet of any public right of way shall be required to adhere to the following. A freestanding retaining wall may not exceed a continuous, uninterrupted height of 10 feet above grade or adjacent curb level (or if no curb exists, from the center crown of the street), whichever is higher. Average grade shall not be applied in determining the maximum height in this instance. Additional height above 10 feet may be permitted, provided the wall contains a minimum 2-foot step back for each additional 10 feet of wall height. A type C2 Street Protective Yard shall be required for any freestanding retaining wall of at least 10 feet in height. Where the retaining wall gains additional height with a step back, the step back area shall provide the quantity of shrubs equal to a type C3 Street Protective Yard. This regulation shall not apply to walls associated with culverts or stream crossings or to transportation improvements, such as bridge overpass structures for streets or railroads.
Full Breakdown
The 10-foot cap only applies to retaining walls that are 'generally parallel to, facing towards, and located within 30 feet of any public right of way', a retaining wall well away from the street, or one that runs perpendicular to it, isn't subject to this specific standard. ' A wall can go taller than 10 feet, but only by stepping back, each additional 10 feet of height requires a minimum 2-foot horizontal step back, keeping the upper portions of a very tall retaining wall further from the right-of-way.
Once a freestanding retaining wall reaches 10 feet, the UDO requires the applicant to install a Type C2 Street Protective Yard along that frontage, and if the wall gains additional height through step-backs, the step-back area itself must be planted with the shrub quantity equal to a Type C3 Street Protective Yard, meaning taller retaining walls carry a real landscaping obligation, not just an engineering one. The rule exempts walls tied to culverts or stream crossings, and transportation structures like bridge overpasses for streets or railroads, recognizing those serve a different structural function than a typical yard or site-grading retaining wall.
Violations & Fines
A retaining wall built taller than the 10-foot cap without the required step-backs, or one missing the mandated Type C2 street protective yard planting, is a zoning violation under UDO Sec. 10.4.1. It carries a $100 civil penalty under Sec. 10.4.2, due within 48 hours of citation, with a $25 late penalty if unpaid and escalation to $500 per day for an uncorrected continuing violation after written notice.
Frequently Asked Questions
How tall can a retaining wall be near the street in Raleigh?
Do I need landscaping for a tall retaining wall?
Does the 10-foot cap apply to every retaining wall on my property?
Sources & Official References
Other rules in Raleigh
Compare Raleigh to another location·View the North Carolina fence regulations overview
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Retaining Walls in Nearby Cities
How other cities in Wake County handle retaining walls.