Lee's Summit, MO Accessory Structures: ADU Impact Fees (2026)
Key Facts
- ADU park impact fee
- $0 (full credit)
- Fee took effect
- July 1, 2025
- Credit basis
- accessory building or use, per UDO
- How to claim it
- proper application to Impact Fee Administrator
- Standard fee basis
- per bedroom (residential) or sq ft (non-residential)
- Administering department
- Parks and Recreation Department
Summary
Lee's Summit's park impact fee, charged citywide on new building permits since July 1, 2025, does not apply to accessory dwelling units. Code of Ordinances § 19-304(B)(6) grants a full fee credit to any building permit requested for an accessory building or use as defined in the Unified Development Ordinance.
B.Full credits. Upon submission of a proper application therefore, the following persons requesting a building permit shall be granted a full credit in the amount of the park impact fees imposed pursuant to this article: ... 6.Building permits which are requested an accessory building or use, as such term is defined in the City's Unified Development Ordinance.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 55 | Unified Development Ordinance: Supplement 15).
Full Breakdown
Chapter 19, Article IV establishes a park impact fee on development requiring a building permit within each of the City's five park service areas (North, East, South, Downtown, West), charged per bedroom for residential uses and per square foot of gross floor area for non-residential uses under Section 19-307. No building permit that triggers the fee can be issued until it is paid, and Section 19-306(B) makes it unlawful to occupy a building before the fee is paid. Section 19-304(B) carves out full credits, meaning the fee drops to zero, for several categories of permit applicants, and accessory buildings or uses (the UDO's term covering detached garages, sheds and accessory dwelling units) are one of them under Section 19-304(B)(6).
The credit is not automatic: the applicant must submit a proper application to the Impact Fee Administrator, the Parks Department administrator or a designee, who reviews it under the article's interpretation authority in Section 19-305. Other full-credit categories in the same subsection cover government and school-district construction, involuntary rebuilds after damage with no added capacity, tax-exempt entities, and any complete building-permit application filed before October 1, 2024. Partial credits under Section 19-304(C) separately apply to redevelopment and change-of-use permits and to developers who dedicate parkland or fund park construction directly.
Violations & Fines
Because the accessory-building credit zeroes out the fee, there is no impact-fee violation exposure for a qualifying ADU once the credit application is approved. For non-exempt development, Section 19-306(A) voids any building permit issued without the required fee payment and lets the City retroactively revoke it, and Section 19-306(B) makes occupying an unpaid-fee building unlawful, exposing the owner to the Code's general penalty under Section 1-13(A): up to a $500 fine or 90 days in jail, with each day of continued violation a separate offense.
Frequently Asked Questions
Do I owe a park impact fee to build an ADU in Lee's Summit?
How do I claim the accessory-building park impact fee credit?
When did Lee's Summit start charging a park impact fee?
What happens if I skip paying a park impact fee that isn't credited?
Sources & Official References
Other rules in Lee's Summit
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