Herriman planning commission backs narrower accessory-structure changes; sends setbacks and 10% height tolerance to council

HERRIMAN, Utah — The Herriman Planning Commission on a unanimous vote recommended the City Council approve clarifying changes to the city’s accessory-structure rules, endorsing a 3-foot minimum side and rear setback for accessory buildings larger than 200 square feet and a 10% height deviation to account for measurement and construction variances.

The recommended package, forwarded to the council after discussion at the planning commission’s public hearing, narrows the scope of a citizen‑initiated text amendment to address an applicant’s permit compliance problem while leaving larger changes — including raising maximum heights and design rules tied to accessory dwelling units (ADUs) — for later consideration.

The recommendation matters because accessory‑structure rules affect how residents may place storage buildings, workshops and potential small ADUs on their lots; the commission’s action clarifies dimensional thresholds that staff and applicants said have caused confusion and neighbor complaints.

Mike Malloy, a staff presenter, told commissioners this was “a…