ADU rules in Lee's Summit, MO — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Lee's Summit expressly allows accessory dwelling units in most residential districts. An ADU cannot exceed 500 square feet or 50 percent of the main home's floor area, whichever is less, and cannot push impervious lot coverage above 60 percent.
The Lee's Summit Unified Development Ordinance (Article 6) permits accessory dwelling units in the RDR, RLL, R-1, RP-1, RP-2, RP-3, RP-4, and TNZ residential districts. An ADU is capped at 500 square feet or 50 percent of the principal structure's floor area, whichever is less, with an exception for Old Downtown lots under 15,000 square feet. The unit may not raise total impervious lot coverage above 60 percent, and it must preserve the single-family character of the home and neighborhood. A building permit through Development Services is required.
An unpermitted ADU is a code violation subject to stop-work orders and retroactive permitting, and it may have to be brought to code or removed. Occupying an illegal dwelling unit is prohibited.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Lee's Summit does not regulate residential holiday decorations and requires no permit for them. Any holiday-related yard signs follow the city's temporary-si...
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Lee's Summit treats garage-sale signs as temporary signs. Stake signs are limited to 3 square feet each and 12 square feet total per property, must sit on pr...
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Lee's Summit allows political and other noncommercial signs on private property with no permit. Under the Unified Development Ordinance, temporary stake sign...
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Lee's Summit runs no general rental-registration or landlord-licensing program for long-term residential rentals. There is no citywide rental permit or per-u...
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Lee's Summit has no just-cause eviction law; state law governs. Landlords may end a month-to-month tenancy with one month's written notice under RSMo 441.060...
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Lee's Summit has no rent control and cannot enact one. Missouri's RSMo 441.043 preempts local rent regulation, so landlords charge market rents and may raise...
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