Kansas City Home Seller Disclosure Requirements (2026)
Kansas City sellers operate under either Missouri or Kansas law depending on which side of the state line the property is on. Both states require disclosure forms. Key issues: basement water intrusion, Missouri River and Kansas River flood zones, and radon across the metro.
Missouri vs. Kansas — Which Form Applies?
Missouri (Jackson, Clay, Platte, Cass counties): Missouri's §339.730 seller disclosure requirement. Provide the Missouri Seller Disclosure Statement before or at contract; buyers have 5 days to rescind after receipt.
Kansas (Johnson, Wyandotte, Leavenworth, Miami counties): Kansas Statute §58-30,106 seller disclosure requirement. Provide the Kansas Seller's Disclosure Statement before or at contract.
Both forms cover all major property conditions. Use the correct state form for your property's location.
Missouri River and Flood Zone Disclosure
Kansas City's history includes the catastrophic 1993 Missouri River flood (one of the costliest in US history) and recurring flood events in river bottomland areas. Areas near the Missouri River (North Kansas City, parts of Riverside, the Parkville area) and the Kansas River confluence have FEMA flood zone exposure.
Check your FEMA flood zone at msc.fema.gov. If your property is in a FEMA Special Flood Hazard Area, disclosure is required on either state's form. Buyers with federally backed mortgages in SFHAs must carry flood insurance.
Basement Water Intrusion
Kansas City's older housing stock — Brookside, Waldo, Hyde Park, Longfellow, and comparable neighborhoods in Prairie Village and Mission Hills (KS) — commonly has basement water challenges from expansive clay soils and aging drainage systems.
The disclosure forms for both states ask about:
Disclose accurately. Water intrusion is one of the most commonly litigated post-closing issues in Missouri and Kansas real estate transactions.
Radon in the Kansas City Metro
The Kansas City metro has elevated radon risk. EPA maps show much of eastern Kansas and western Missouri in Zone 1 and Zone 2 radon risk areas. Both the Missouri and Kansas disclosure forms ask about radon.
If you've tested: disclose results. If untested: buyers may request testing during inspection.
HOA Disclosure in Johnson County
Johnson County, Kansas (Overland Park, Leawood, Olathe, Lenexa, Shawnee) has one of the highest HOA penetrations of any Kansas county. Kansas HOA law requires sellers to provide HOA governing documents to buyers. Disclose all HOA fees, restrictions, and pending assessments.
No Transfer Tax in Either State
Neither Missouri nor Kansas imposes a state real estate transfer tax. This is a genuine seller benefit — on a $300,000 KC home, you avoid the $1,500–$3,000 in transfer taxes that sellers in Ohio, Pennsylvania, or Florida would pay.