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Lee's Summit, MO Accessory Structures: ADU Impact Fees (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 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.

View official code

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?
No. Section 19-304(B)(6) grants a full credit, reducing the park impact fee to zero, for any building permit requested for an accessory building or use, the UDO's category that covers accessory dwelling units, once you submit a proper application to the Impact Fee Administrator.
How do I claim the accessory-building park impact fee credit?
Submit a proper application to the Impact Fee Administrator, the Parks Department's designated administrator, under Section 19-304(B). Full credits under this subsection are granted upon submission of the application; you don't need a separate hearing before the Parks Board the way partial credits under Section 19-304(C) require.
When did Lee's Summit start charging a park impact fee?
The fee applies to any development for which a building permit is requested on or after July 1, 2025, under Section 19-303(A). Applications filed before October 1, 2024 also get a full credit under Section 19-304(B)(5), separate from the accessory-building exemption.
What happens if I skip paying a park impact fee that isn't credited?
Section 19-306 makes the building permit void if issued without payment, letting the City retroactively revoke it, and makes it unlawful to occupy the building until the fee is paid. Violators face the Code's general penalty of up to a $500 fine or 90 days in jail under Section 1-13(A).

Sources & Official References

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