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Algonquin is a growing village in McHenry County, Illinois, situated along the Fox River at the border of Kane County. The community has seen significant residential development in recent decades, and a notable share of households rent their homes. Like all renters in Illinois outside of Chicago, Algonquin tenants rely on state law for their core protections — covering everything from security deposit returns to habitable living conditions and protection against unlawful eviction.
Renters in Algonquin most commonly seek information about how much notice a landlord must give before ending a lease, what rules govern security deposit returns, and what steps a landlord must legally follow before filing for eviction. Illinois provides meaningful protections in each of these areas through statutes enforced in McHenry County courts. There is no local rent control, no municipal rental ordinance, and no Algonquin-specific tenant rights office — state law is the primary source of renter protections here.
This article is a general informational resource and does not constitute legal advice. Laws can change, and individual situations vary. If you are facing eviction, a dispute over your security deposit, or habitability concerns, contact a licensed Illinois attorney or a free legal aid organization for guidance specific to your circumstances.
Algonquin has no rent control, and Illinois state law expressly prohibits municipalities from enacting it. Under 765 ILCS 720/1, the Illinois General Assembly has preempted all local rent control ordinances statewide. This means no city, village, or county in Illinois — including Algonquin and McHenry County — may limit how much a landlord charges or how much rent can be increased, either at lease renewal or between tenancies.
In practice, this means that a landlord in Algonquin can raise your rent by any amount when your lease expires. There is no cap on rent increases, no required percentage limit, and no notice period specifically mandated for rent increases beyond what is needed to properly terminate or renew a tenancy. A landlord who wishes to raise rent on a month-to-month tenant must provide at least 30 days' written notice before the effective date of the change, because that amount of notice is needed to alter a month-to-month tenancy term under Illinois common law and the Landlord and Tenant Act.
Renters seeking relief from high rents should be aware that the only practical protections are lease terms they negotiate directly. Once a fixed-term lease expires, a landlord is free to offer renewal at any rent. Tenants who believe a rent increase is retaliatory — for example, following a complaint about housing conditions — may have a separate claim under 765 ILCS 720/1, but that statute does not limit the amount of any rent increase in general.
Illinois law provides several important protections for all renters, including those in Algonquin. The following outlines the major statewide rights that apply to your tenancy.
Habitability (Illinois Common Law & 765 ILCS 735/1): Landlords in Illinois have a common-law duty to maintain rental units in a habitable condition. This means providing working heat, plumbing, structural safety, and freedom from serious pest infestations. If a landlord fails to make necessary repairs after being notified in writing, Illinois courts have recognized tenants' rights to withhold rent or pursue repair-and-deduct remedies in limited circumstances, though tenants should consult legal counsel before doing so. The Illinois Dwelling Unit Habitability Act (765 ILCS 735/1) reinforces these baseline standards.
Security Deposit Rules (765 ILCS 710 & 765 ILCS 711): The Illinois Security Deposit Return Act requires landlords with five or more rental units to return a tenant's security deposit — along with an itemized written statement of deductions — within 30 days after the tenant vacates. If the landlord wrongfully withholds all or part of the deposit, the tenant is entitled to recover twice the amount wrongfully withheld. The Security Deposit Interest Act (765 ILCS 711) also requires landlords with 25 or more units to pay interest on deposits held for more than six months.
Notice to Terminate (735 ILCS 5/9-207): For month-to-month tenancies, Illinois law requires at least 30 days' written notice from either the landlord or the tenant to end the rental agreement. For week-to-week tenancies, 7 days' notice is required. Fixed-term leases expire on their own terms unless renewed.
Anti-Retaliation (765 ILCS 720/1): Illinois law prohibits landlords from retaliating against tenants who complain to government agencies about housing code violations, request legally required repairs, or exercise any legal tenant right. Prohibited retaliatory acts include raising rent, reducing services, or attempting eviction. A court may award the tenant damages, attorney fees, and other relief if retaliation is proven.
Lockout & Utility Shutoff Prohibition (735 ILCS 5/9-101 et seq.): Self-help eviction is illegal in Illinois. A landlord may not change your locks, remove your belongings, shut off your utilities, or otherwise attempt to force you out without a court order. Tenants subjected to an illegal lockout or utility shutoff may seek emergency injunctive relief in court and may recover damages.
Security deposit rules in Algonquin are governed by Illinois state law. There is no statewide cap on the amount a landlord may charge as a security deposit — landlords may require any amount they choose, and it is typically negotiated at lease signing.
Return Deadline: Under the Illinois Security Deposit Return Act (765 ILCS 710/1), landlords who own five or more residential units must return the security deposit — or the portion not used for legitimate deductions — within 30 days after the tenant vacates the unit. If the landlord intends to make deductions for damages beyond normal wear and tear, they must provide an itemized written statement of those deductions along with the remaining deposit within 30 days.
Penalty for Wrongful Withholding: If a landlord covered by this statute fails to return the deposit or provide the required itemized statement within 30 days, the tenant is entitled to twice the amount of the deposit wrongfully withheld, plus court costs and attorney fees. This penalty is significant and is intended to deter landlords from improperly keeping deposits.
Interest on Deposits (765 ILCS 711/1): Landlords who own 25 or more units must pay interest on security deposits held for more than six months. The interest rate is set annually by the Illinois State Treasurer. Landlords with fewer than 25 units in Algonquin are not required to pay interest on deposits.
Normal Wear and Tear: Landlords may not deduct from a security deposit for ordinary wear and tear — gradual deterioration that results from normal use of the unit. Deductions are only permitted for damage caused by the tenant beyond what is considered normal.
Tenants should document the condition of the unit at move-in and move-out with dated photographs and written records. If you believe your deposit has been wrongfully withheld, contact Prairie State Legal Services or Illinois Legal Aid Online for assistance.
Illinois law requires landlords to follow a specific court-supervised process before removing a tenant. Self-help eviction — including changing locks, removing a tenant's belongings, or shutting off utilities — is illegal under 735 ILCS 5/9-101 et seq. and can expose a landlord to significant legal liability.
Step 1 — Written Notice: Before filing for eviction, a landlord must serve the tenant with a written notice. The type and length of notice depends on the reason for eviction:
Step 2 — Filing in Court: If the tenant does not comply with the notice, the landlord may file an eviction complaint in the McHenry County Circuit Court. The tenant will be served with a summons and given a court date.
Step 3 — Court Hearing: Both the landlord and tenant have the opportunity to appear and present their case. Tenants have the right to assert defenses, including that the landlord failed to maintain habitable conditions, that the eviction is retaliatory, or that proper notice was not given. If the court rules in the landlord's favor, it will issue an order of possession.
Step 4 — Enforcement: Only a McHenry County Sheriff's deputy may physically remove a tenant pursuant to a valid court order of possession. No landlord may physically remove a tenant without this order. If you are served with eviction papers, seek legal assistance immediately — contact Prairie State Legal Services or Illinois Legal Aid Online as soon as possible, as deadlines are strict.
This article is provided for general informational purposes only and does not constitute legal advice. The information presented here reflects our understanding of Illinois law as of April 2026, but laws and local regulations can change. Tenant rights situations are highly fact-specific, and the information on this page may not apply to your individual circumstances. For advice about your specific situation, please consult a licensed Illinois attorney or contact a qualified legal aid organization such as Prairie State Legal Services or Illinois Legal Aid Online. RentCheckMe is not a law firm and no attorney-client relationship is created by reading or relying on this content.
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