Illinois Habitability and Repair Standards

There is no statewide habitability statute; the duty arises from Illinois common law. In Jack Spring, Inc. v. Little, 50 Ill. 2d 351 (1972), the Illinois Supreme Court abandoned the old rule that a landlord owed no repair duty and held that residential leases (oral or written) include an implied warranty of habitability 'fulfilled by substantial compliance with the pertinent provisions' of the applicable building code. Pole Realty Co. v. Sorrells (1981) extended the warranty beyond multi-unit buildings. A breach must be substantial enough to render the unit unsafe or unsanitary, and the duty to pay rent is dependent on the landlord's performance, so tenants may have remedies such as rent abatement. The Chicago RLTO codifies specific maintenance duties locally.

No specific statutory penalty statewide. On a substantial breach, tenants may pursue common-law remedies including rent abatement, damages, or, in some cases, termination; because rent is dependent on the warranty, a court may reduce rent to the unit's diminished value. Chicago's RLTO adds its own remedies.