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West Allis planning commission backs changes to ADU and accessory‑structure rules
Summary
The commission recommended an amendment to reduce a 60‑foot front setback for accessory dwelling units (ADUs) to setbacks dictated by zoning districts and added clearer permit and design standards for accessory buildings larger than 150 sq ft; the measure will go to city council for public hearing.
The West Allis Plan Commission voted to recommend changes to the city’s zoning rules for accessory dwelling units (ADUs) and other accessory buildings, forwarding the ordinance amendment to the common council for a public hearing.
City staff said the current ordinance requires a 60‑foot front setback for detached ADUs, a rule that can push ADUs into rear yards and reduce development flexibility on some lots. The proposed amendment would shorten that requirement by deferring to the front‑yard setback established by the zoning district (for example, a 10‑foot minimum in R‑V districts), which staff said would make ADUs more feasible on many lots.
The amendment also clarifies that detached accessory structures larger than 150 square feet will require a building permit and introduces basic design and construction standards to discourage temporary fabric carports or low‑quality structures in residential neighborhoods. Staff framed the changes as modest, aimed at preserving neighborhood character while increasing flexibility for smaller accessory homes and improving enforcement and design clarity.
“Accessory dwelling units are allowed by right in residential districts subject to these rules,” the presenter said, noting the proposed change would provide more options for locating detached ADUs closer to the front yard while respecting district setbacks. Staff recommended the commission approve the ordinance amendment and forward it to council for consideration.
Commissioners moved and seconded the recommendation; the vote was unanimous. The council will schedule a public hearing before any ordinance becomes law.
