Oak Lawn is a village in Cook County in the southwest suburbs of Chicago. Renters in Oak Lawn are governed entirely by Illinois state landlord-tenant law — there is no Oak Lawn-specific tenant ordinance comparable to Chicago's Residential Landlord and Tenant Ordinance (RLTO), which applies only within the city limits of Chicago and not in suburban Cook County municipalities.
Illinois state law (50 ILCS 825/5) prohibits local governments from enacting rent control, so neither Oak Lawn nor Cook County may cap rent increases. Core tenant protections come from the Illinois Security Deposit Return Act (765 ILCS 710), anti-retaliation statutes, and Illinois common law governing habitability, eviction procedure, and unlawful lockouts.
This page is intended as general informational education only and does not constitute legal advice. Renters facing urgent housing issues should contact Prairie State Legal Services or Illinois Legal Aid Online.
Oak Lawn has no rent control, and Illinois state law (50 ILCS 825/5) prohibits local governments from enacting rent control or rent stabilization ordinances. This statewide preemption means neither Oak Lawn nor Cook County has any legal authority to limit rent increases, require rent registration, or cap how much a landlord can charge.
An Oak Lawn landlord may raise rent by any dollar amount. The only constraint is proper written notice before the change takes effect — at least 30 days' notice for month-to-month tenancies under Illinois law. Fixed-term lease tenants are protected from mid-term increases unless the lease expressly permits them.
Illinois state law provides the following key protections for Oak Lawn renters:
2025-2026 Illinois law updates: Effective January 1, 2026, the Safer Homes Act (Public Act 103-1031) requires landlords to attach the Illinois Department of Human Rights' Summary of Rights to every residential lease; House Bill 3566 (Public Act 104-0317) prohibits landlords from naming minors as defendants in an eviction action, and a violation requires dismissal of the case and allows a $1,000 penalty plus actual damages and attorney's fees; and Senate Bill 1563 allows owners to have police remove certain unauthorized occupants or squatters under the criminal trespass statute without filing a full eviction case. Separately, the Landlord Retaliation Act took effect January 1, 2025, creating a one-year presumption that adverse landlord action taken after a tenant's protected activity is retaliatory.
In Oak Lawn, security deposit rules are governed by the Illinois Security Deposit Return Act (765 ILCS 710). There is no Illinois statewide cap on the security deposit amount — it is whatever is agreed to in your lease. However, landlords must follow strict return procedures.
Return Deadline: After you vacate, your landlord has 30 days to return your security deposit along with a written itemized statement of any deductions. The statement must specify each deduction and the dollar amount charged.
Penalty for Non-Compliance: If your landlord fails to return the deposit or provide the required itemized statement within 30 days, you may be entitled to twice the amount wrongfully withheld plus reasonable attorney's fees under 765 ILCS 710/1.
Allowable Deductions: Landlords may deduct for unpaid rent and damage beyond normal wear and tear. Document the unit's condition with dated photographs at both move-in and move-out, and provide your forwarding address in writing when you move out.
To evict a tenant in Oak Lawn, a landlord must follow Illinois's formal eviction process — self-help methods are illegal.
Step 1 — Written Notice: The landlord must first serve a written notice on the tenant:
Step 2 — Filing in Court: If the tenant does not comply, the landlord may file an eviction action in Cook County Circuit Court. The tenant has the right to appear and contest the eviction.
Step 3 — Hearing: Tenants may raise defenses including habitability violations, improper notice, and retaliation. Tenants unable to afford an attorney should contact Prairie State Legal Services or Illinois Legal Aid Online.
Step 4 — Judgment and Enforcement: If the court enters judgment for the landlord, an order of possession is issued. Only the Cook County Sheriff may physically remove a tenant — the landlord cannot do so independently.
Self-Help Eviction Is Illegal: A landlord who changes locks, shuts off utilities, or removes a tenant's belongings without a court order may face civil liability. Contact Prairie State Legal Services immediately if this occurs.
This article provides general information about tenant rights in Oak Lawn, Illinois and is not legal advice. Laws change — verify current rules with a local attorney or tenant organization before taking action.
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