Illinois Mobile Home Park Rent Control: 2026 Guide

Is mobile home lot rent controlled in Illinois?

No. Illinois has no rent control, not statewide and not in any city or county. Mobile home lot rent is set by the market and your lease, not by a government cap.

What Illinois does regulate for mobile home parks is the process. The Mobile Home Landlord and Tenant Rights Act (765 ILCS 745) makes you offer a written lease and give advance notice before rent goes up, but it sets no ceiling on the amount.

No rent control anywhere in Illinois

Illinois has never enacted statewide rent control, and the Rent Control Preemption Act (50 ILCS 825) blocks local governments from creating it. Section 825/5 bars any unit of local government from enacting, maintaining, or enforcing an ordinance that controls the amount of rent charged for private residential or commercial property.

Section 825/10 extends the same ban to home rule units, so even Chicago and other home rule municipalities cannot adopt rent control. Any local mobile-home rent-cap ordinance would be void under this Act.

What the Mobile Home Act does require: lease terms and notice

Under 765 ILCS 745/6(a), you must offer every present and future tenant a written lease for a term of not less than 24 months, unless the tenant waives that right and both sides agree to a different term.

Section 6(d) requires 90 days' written notice of any rent increase, and no increase can take effect until 90 days after that notice; the tenant then has 30 days to accept or reject it. Month-to-month tenancies also require at least 90 days' notice before an increase (§6(f)), and on renewal the increase notice must be delivered 90 days before the lease expires (§9).

Section 6.5(7) adds a disclosure duty: with every lease, sale, or renewal you must provide a 3-year rent-increase projection covering the two lease years plus the following year. The basis may be a fixed amount, a "not to exceed" amount, a formula, or an index that you elect, which is disclosure of your own plan, not a state-imposed limit.

There is no percentage or dollar cap on the increase

Nothing in Illinois law caps how much you can raise mobile home lot rent. Section 9 confirms that rents may be increased upon the renewal of a lease. The only requirements are procedural, namely advance notice and written disclosure, not a limit on the amount or percentage.

The "not to exceed" language in the Section 6.5 disclosure is a projection method a park owner may choose, not a statutory ceiling. Be skeptical of any blog or chart claiming an Illinois rent-increase percentage cap, because there isn't one.

Rent-increase rules at a glance in Illinois

• Statewide cap
  None. Illinois has no rent control on any property type.
• Local caps
  Prohibited. 50 ILCS 825/5 and 825/10 preempt all local and home rule rent control.
• Notice for an increase
  90 days' written notice; the increase cannot take effect until 90 days after notice (765 ILCS 745/6(d)).
• Tenant response window
  The tenant has 30 days after the notice to accept or reject the increase (765 ILCS 745/6(d)).
• Month-to-month
  Minimum 90 days' notice before any rent increase (765 ILCS 745/6(f)).
• Lease renewal
  Increase notice delivered 90 days before the lease expires (765 ILCS 745/9).
• Required lease term
  Must offer a written lease of at least 24 months (765 ILCS 745/6(a)).
• 3-year disclosure
  Provide a 3-year rent-increase projection with every lease, sale, or renewal (765 ILCS 745/6.5(7)).

Operator best practices in Illinois

• Calendar the 90 days
  Send every rent-increase notice at least 90 days ahead and don't apply the new rent until day 91.
• Put it in writing
  Deliver each increase notice and the 3-year projection in writing to satisfy 765 ILCS 745/6 and 6.5.
• Offer the 24-month lease
  Document the written lease offer to every tenant and keep any month-to-month waiver signed.
• Keep your projection honest
  Match actual increases to the disclosed 3-year projection basis you elected to avoid disputes.
• Ignore rent-cap myths
  No Illinois percentage cap exists; don't rely on out-of-state charts or generic max-increase figures.
• Build a relationship with an Illinois MHP attorney
  765 ILCS 745 carries eviction, disclosure, and park-closure rules beyond rent; have counsel review your lease and notice forms.