Plan commission approves backyard fence permit after debate over drainage easement sign-off

The Germantown Plan Commission on May 11 approved a zoning permit for a 4-foot solid vinyl privacy fence that would encroach into a public storm drainage easement and an adjacent private drainage easement, after prolonged debate about flood risk and who must sign off on private-easement encroachments.

Staff presented the application from property owner Brian Sparrow and noted the zoning code allows encroachment into publicly owned drainage easements at the commission's discretion but requires written authorization for fences in private easements from the easement's beneficiary. In this case staff and the village attorney said no active homeowners association exists for the Wooded Hills subdivision, so the beneficiary role likely defaults to the affected property owners.

Commissioners raised several concerns rooted in recent storm events: the field inlet that receives drainage from roughly a dozen rear yards is a low point and clogged in a prior heavy-rain event, and a fence located in or too near the easement could trap debris, restrict flow and exacerbate backyard flooding. Commissioner Bob asked for an engineer's analysis to confirm whether the proposed 4-inch offset from a 12-inch storm sewer pipe would allow high flows to pass without interference.

"If that field inlet starts to back up, then that water goes over the surface," a commissioner said. "I'm concerned about those 12 homeowners who would be impacted by the placement of this fence in the private easement." (Commissioners discussed recent local basement flooding as background.)

Staff said the code allows the commission to require an engineering report and indicated the village attorney could help determine which property owners must sign a consent. The plan commission approved the permit with a motion that amended condition language to remove a blanket requirement that "all homeowners in the subdivision" sign off; staff will work with the village attorney to identify the appropriate subset of beneficiaries whose written authorization will satisfy the code requirement.

Why it matters: The case highlights a recurring planning tension: private property improvements (privacy fencing) can have collective consequences for neighborhood stormwater systems. Commissioners moved cautiously to avoid creating a long-term drainage hazard for adjacent properties.

Next steps: Staff will coordinate with the village attorney and the applicant to secure the written authorization required by code from the appropriate beneficiaries or otherwise confirm how to proceed before final issuance of the permit.