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Prospect Heights is a suburban city in Cook County, Illinois, with a population of roughly 16,000 residents. A significant portion of households in Prospect Heights rent their homes, and like renters across Illinois, they are governed by state law rather than any local tenant-protection ordinances. The most common questions Prospect Heights renters have involve security deposit returns, what notice a landlord must give before eviction, and what to do when a landlord refuses to make repairs.
Illinois law provides a baseline of protections for all renters statewide, including rules on security deposits (765 ILCS 710), habitability, anti-retaliation (765 ILCS 720/1), and eviction procedure. Prospect Heights is not subject to the Chicago Residential Landlord and Tenant Ordinance (RLTO), so renters here rely on the statewide framework and Cook County courts for enforcement. Understanding these protections can make a meaningful difference if a dispute with your landlord arises.
This page summarizes tenant rights in Prospect Heights, Illinois, as of April 2026. It is provided for informational purposes only and does not constitute legal advice. Laws change, and individual circumstances vary — consult a qualified attorney or legal aid organization for advice specific to your situation.
Prospect Heights has no rent control, and Illinois state law prohibits any municipality from enacting rent control ordinances. The Illinois Rent Control Preemption Act (765 ILCS 720/1 et seq.) expressly bars cities, counties, and other units of local government from adopting or enforcing any ordinance that would limit the amount a landlord may charge for rent. This preemption applies statewide — including to home-rule municipalities such as Chicago, Evanston, and Prospect Heights.
In practical terms, this means your landlord in Prospect Heights can increase your rent by any amount when your lease term ends. There is no cap on rent increases, no required justification, and no city agency to file a rent-increase complaint with. Your landlord must still provide proper written notice before raising the rent — at least 30 days for month-to-month tenants — but the amount of the increase is entirely at the landlord's discretion under current Illinois law.
Renters who are concerned about large rent increases should review their lease carefully before signing or renewing, negotiate fixed-rent terms for longer lease periods, and monitor any changes to state law through resources such as Illinois Legal Aid Online (www.illinoislegalaid.org).
Illinois state law provides several important protections for Prospect Heights renters, even in the absence of a local landlord-tenant ordinance.
Security Deposits (765 ILCS 710/1; 765 ILCS 711/1): The Illinois Security Deposit Return Act requires landlords who own five or more rental units to return a tenant's security deposit — or provide a written, itemized statement of deductions — within 30 days of the tenant vacating the unit, or within 30 days of the landlord discovering any damage, whichever is later. If the landlord withholds the deposit wrongfully, the tenant may be entitled to recover the deposit plus damages. The Security Deposit Interest Act (765 ILCS 710/1) additionally requires landlords of 25 or more units to pay interest on deposits held for more than six months.
Habitability: Illinois common law imposes an implied warranty of habitability on residential landlords, requiring that rental units be maintained in a condition fit for human habitation. This includes functioning heating, plumbing, structural safety, and freedom from significant pest infestation. While Illinois does not have a single statewide habitability statute, courts have consistently enforced this implied warranty, and tenants may have remedies including rent withholding or repair-and-deduct in appropriate circumstances — consult an attorney before exercising these remedies.
Anti-Retaliation (765 ILCS 720/1): The Illinois Retaliatory Eviction Act prohibits landlords from retaliating against tenants who complain to a government agency about housing code violations or assert other legal rights. Retaliatory conduct — including eviction, rent increases, or reduction of services — within one year of a protected complaint creates a presumption of retaliation that the landlord must rebut. A tenant who prevails on a retaliation claim may recover damages and attorney fees.
Notice Requirements: For month-to-month tenancies, Illinois law requires at least 30 days written notice from either the landlord or tenant to terminate the tenancy. Fixed-term leases automatically expire at the end of the term unless renewed; no additional notice is required unless the lease specifies otherwise.
Lockout and Utility Shutoff Prohibition: Illinois law prohibits landlords from using self-help methods to remove a tenant, including changing locks, removing doors or windows, or intentionally shutting off utilities. Landlords must obtain a court judgment and a sheriff's writ before physically removing a tenant. Violation of this prohibition can expose the landlord to civil liability.
Security deposit rules for Prospect Heights renters are governed by two Illinois statutes: the Security Deposit Return Act (765 ILCS 710/1) and the Security Deposit Interest Act (765 ILCS 711/1).
Deposit Cap: Illinois state law does not cap the amount a landlord may charge as a security deposit in Prospect Heights. The landlord and tenant may negotiate the deposit amount freely, and it is typically one to two months' rent.
Return Deadline: Landlords who own five or more rental units must return the security deposit within 30 days after the tenant vacates the premises. If the landlord intends to make deductions for damages beyond normal wear and tear, they must provide the tenant with an itemized written statement of deductions — accompanied by paid receipts or estimates — within 30 days of the tenant vacating. If the landlord cannot obtain paid receipts within that period, estimates must be delivered within 30 days and paid receipts within 30 days thereafter (765 ILCS 710/1).
Wrongful Withholding: If a landlord covered by the statute fails to return the deposit or provide the required itemization within the statutory period, the tenant may be entitled to recover the full security deposit — regardless of any legitimate deductions — plus court costs. Tenants should document the condition of the unit at move-in and move-out with photos and written records to support any dispute.
Interest on Deposits (765 ILCS 711/1): Landlords who own 25 or more rental units in Illinois must pay interest on security deposits held for more than six months. The interest rate is set annually by the Illinois Department of Financial and Professional Regulation. Landlords of fewer than 25 units are not required to pay interest under state law.
Landlords with Fewer Than Five Units: The Security Deposit Return Act's itemization and deadline requirements apply specifically to landlords with five or more units. Tenants renting from smaller landlords still have common-law remedies for wrongfully withheld deposits, but the specific statutory framework may not apply — consult a legal aid attorney for guidance.
Eviction in Prospect Heights follows Illinois state law procedures. Landlords must comply with each step; skipping any step can result in a case being dismissed by the court.
Step 1 — Written Notice: Before filing an eviction lawsuit, the landlord must serve the tenant with a written notice. The type and duration of notice depends on the reason for eviction:
Step 2 — Filing an Eviction Complaint: If the tenant does not comply with the notice, the landlord may file an eviction (forcible entry and detainer) complaint in the Cook County Circuit Court. The tenant will be served with a summons and given a court date, typically within 14–21 days of filing.
Step 3 — Court Hearing: Both parties appear before a judge. Tenants have the right to present defenses, such as the landlord's failure to maintain habitable conditions, improper notice, or retaliation. If the judge rules in the landlord's favor, the court issues an order of possession.
Step 4 — Writ of Possession and Sheriff Enforcement: After a judgment, the landlord may obtain a writ of possession. Only a Cook County Sheriff's deputy may physically remove a tenant pursuant to the writ. Landlords may not remove tenants themselves (735 ILCS 5/9-101 et seq.).
Self-Help Eviction Is Illegal: Landlords in Prospect Heights are strictly prohibited from using self-help eviction methods — including changing locks, removing doors or windows, removing the tenant's belongings, or shutting off utilities — to force a tenant out without a court order. Such actions can expose the landlord to civil liability, including damages and attorney fees. If your landlord attempts a lockout or utility shutoff, contact local police and a tenant legal aid organization immediately.
Just Cause: Illinois does not require just cause for eviction at the end of a fixed-term lease. Landlords may choose not to renew a lease for any lawful reason, provided proper notice is given. However, eviction in retaliation for complaining about housing conditions is illegal under 765 ILCS 720/1.
The information on this page is provided for general informational purposes only and does not constitute legal advice. Tenant rights laws in Illinois and Prospect Heights may change, and the applicability of any law depends on the specific facts of your situation. RentCheckMe is not a law firm and does not provide legal representation. If you have a dispute with your landlord or need advice about your rights, please consult a licensed Illinois attorney or contact a legal aid organization such as Illinois Legal Aid Online (www.illinoislegalaid.org) or Prairie State Legal Services (www.pslegal.org). Do not rely solely on this page when making legal decisions.
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