Last updated: April 2026
Affton is an unincorporated community in St. Louis County with no local rent control. Missouri state law provides baseline tenant protections on security deposits, eviction notices, and habitability.
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Affton is an unincorporated community in St. Louis County, Missouri, with approximately 21,000 residents. As an unincorporated area, Affton has no city government and is governed by St. Louis County and Missouri state law. Mo. Rev. Stat. § 441.043 prohibits local rent control ordinances, so there is no rent regulation in Affton. Tenants are protected by Missouri's landlord-tenant statutes covering deposits, eviction procedures, and habitability.
Legal Services of Eastern Missouri serves St. Louis County and provides free civil legal assistance to income-eligible tenants.
Affton has no rent control. Missouri state law at Mo. Rev. Stat. § 441.043 prohibits local governments — including counties — from enacting rent control or rent stabilization ordinances. Landlords may raise rent at renewal by any amount with 30 days' written advance notice for month-to-month tenancies.
Missouri landlord-tenant law applies uniformly in Affton:
In Affton, security deposits are capped at 2 months' rent under Mo. Rev. Stat. § 535.300. After move-out, the landlord has 30 days to return the deposit with a written itemized deduction statement. Wrongful withholding entitles you to double the amount wrongfully kept plus attorney's fees. Photograph your unit at move-in and move-out and document its condition in writing.
In Affton, landlords must serve written notice and then file an eviction action in St. Louis County Circuit Court. For non-renewal of a month-to-month tenancy, 30 days' written notice is required (Mo. Rev. Stat. § 441.060). Self-help eviction — changing locks, removing belongings, or shutting off utilities — is illegal under Mo. Rev. Stat. § 534.030. The St. Louis County Sheriff enforces eviction orders only after a court judgment.
No. Mo. Rev. Stat. § 441.043 prohibits local rent control ordinances throughout Missouri, including unincorporated St. Louis County. Landlords in Affton may raise rent at renewal by any amount with 30 days' advance written notice for month-to-month tenancies.
There is no cap on rent increases. Missouri has no statewide rent control. Your landlord must give 30 days' written notice before any rent increase takes effect on a month-to-month lease.
Within 30 days of move-out with a written itemized deduction statement (Mo. Rev. Stat. § 535.300). Wrongful withholding entitles you to double the amount improperly kept plus attorney's fees.
For non-renewal of a month-to-month tenancy, 30 days' written notice is required (Mo. Rev. Stat. § 441.060). After the notice period, the landlord must file an eviction action in St. Louis County Circuit Court.
No. Self-help eviction is illegal under Mo. Rev. Stat. § 534.030. A landlord who changes locks or cuts off utilities without a court order can be held civilly liable. Contact Legal Services of Eastern Missouri at lsem.org immediately.
Missouri recognizes an implied warranty of habitability. Notify your landlord in writing and keep a copy. If essential services remain unaddressed after reasonable notice, you may seek a rent reduction or lease termination through the court. Contact Legal Services of Eastern Missouri at lsem.org for guidance.
This article is for informational purposes only and does not constitute legal advice. Laws can change; consult a licensed Missouri attorney for advice specific to your situation.
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