ADU Ledger

Does Westminster charge impact fees on ADUs?

✓ Verified against code · August 19, 2026

No — no park, school, or land-dedication fees apply to ADUs, which materially changes the budget versus neighboring cities.

Citation: City ADU guide

How current is this?

Westminster’s ADU rules run under WMC 11-4-19 (Westminster Municipal Code) (Ordinance 4272 (amended by Ord 4335)). Westminster complied six months early (January 1, 2025) with clean, statute-shaped rules — then amended once more in March 2026 (Ordinance 4335, at the state's insistence) to guarantee small-home owners the statutory 750 sq ft. One of the smoothest adoptions on the Front Range, with a published review timeline to match. We verified this answer against primary sources on August 19, 2026, and every change we catch is logged in the changelog.

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Not legal advice — lot-specific overlays can change the answer for your parcel. The citation above points at the governing code section; check it, or ask the city to confirm.