Fence Regulations in Howard County, MD (2026)
5 rules for unincorporated Howard County, Maryland.
Verified from official government sources
Height Limits
On a corner lot, no fence over 3 feet may sit inside the sight triangle formed by lines 25 feet back from where the roads meet. Fences must also respect front setbacks from any public road right-of-way.
Fence Placement and Corner-Lot Requirements
Some RestrictionsHoward County Zoning Regulations § 128.0.A.9.b.(3)(b)
On a corner lot closed fences, walls, and retaining walls over three feet in height shall not be located within a triangle formed by straight lines joining points 25 feet back from the point where the roads intersect.
Fence Permit Requirements
Fences that stay within the exempt heights need no zoning setback approval, but Howard County's building code requires a permit for fences over 6 feet tall. Taller or closer fences must also satisfy the district's accessory-structure bulk requirements.
Do You Need a Fence Permit in Howard County?
Some RestrictionsHoward County Zoning Regulations § 128.0.A.9.a.(5)
Other than the exceptions noted above, fences must comply with all accessory structure bulk requirements of the applicable zoning district.
Neighbor Fence Rules
A closed fence up to 6 feet along a shared side or rear lot line is exempt from setbacks, so it can sit on the property line. Maryland has no statute forcing neighbors to split fence costs; that stays a private matter.
Shared Fences and Neighbor Rules in Howard County
Some RestrictionsHoward County Zoning Regulations § 128.0.A.9.b.(1)
For properties where the side or rear yard adjoins another lot line and not a public road: Closed fences, walls and retaining walls over three feet and up to six feet in height are exempt from structure or use setback requirements if located in a side or rear yard.
Retaining Walls
A retaining wall in Howard County needs no building permit if it is 3 feet or less, measured from the lowest adjacent grade to the top of the wall; anything taller requires a permit under County Code Section 3.101(b)(26).
Howard County Retaining Wall Permit Rule
Some RestrictionsHoward County Code § 3.101(b)(26) (amending IBC § 105.2, Work Exempt From Permit)
(26)Subsection 105.2 Work exempt from permit....(vii)Add the following as item 14 at the end of this Subsection:14.The following work on existing single-family dwellings:...d.Site work:1.Paving driveways;2.Installation of patios, sidewalks, or landscaping;3.Installation of retaining walls that are 3 feet or less in height measured from the lowest adjacent grade to the top of the wall; or4.Insta...
Material Restrictions
Howard County defines a closed fence as board-on-board, privacy or stockade, or any fence 50% or less visibly open, including masonry walls. The open-vs-closed distinction, not the material name, decides which height exemptions apply.
Open vs. Closed Fences in Howard County
Some RestrictionsHoward County Zoning Regulations § 128.0.A.9.a.(1)(b)
Closed fences which include board on board, privacy or stockade fences, or any other fences in which 50% or less of the fence area is visibly open. Masonry walls that serve the same purpose as a closed fence are considered closed fences.
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