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Retaining Walls

Fence Regulations

Height limits and permit requirements for retaining walls, including engineering requirements for taller walls on sloped lots.

1% permissive89% moderate0% strict(813 locations)

How Retaining Walls Rules Differ by Place

813 places covered1 strict726 moderate10 permissive

Fond du Lac County, WI: Retaining Walls Banned at Fond du Lac County Drives

Heavy Restrictions

In unincorporated Fond du Lac County, retaining walls are flatly prohibited within the design standards for any driveway or road built to access a county trunk highway (CTH). The…

Boone County, IN: Retaining Walls: Unincorporated Boone County, IN

Few Restrictions

In unincorporated Boone County, Indiana, retaining walls are on the county's own list of exempt accessory structures: Board of Commissioners' Code § 157.021(C) lets homeowners build…

Lafayette, LA: Lafayette Retaining Walls Skip the Setback Line

Few Restrictions

Lafayette's setback-encroachment table lets a retaining wall sit anywhere inside a required yard. Code of Ordinances § 89-38(e)(4) lists 'Retaining Walls' with no restriction on how…

Rockville, MD: Rockville Retaining Wall Height Rules

Few Restrictions

Rockville places no height cap on retaining walls that hold back earth along a lot line, they may be built to any height needed, measured from the lower grade, but if the wall also…

Auburn, AL: Auburn Retaining Wall Guard Over 6 Feet

Some Restrictions

Auburn's residential building code amendment requires a protective guard atop any retaining wall taller than 6 feet, the same 30-inch/36-inch trigger it uses for stairs, ramps, decks…

Birmingham, AL: Front-yard retaining wall: 2 ft setback per 4 ft of height

Some Restrictions

A retaining wall is defined in Birmingham's ordinance as a block, brick, or stone structure erected to retain or prevent encroaching soil. A front-yard retaining wall built to level…