15-1219.Residential Real Estate.
Article XV. Mortgage Foreclosure · Part 12. Definitions · Last amended 2013 · Last verified July 20, 2026
Full Text of 735 ILCS 5/15-1219
Plain-English Summary
Section 15-1219 excludes a single tract of agricultural real estate larger than 40 acres from ever qualifying as residential real estate, then defines the term for everything else. Qualifying real estate must be improved with a single family residence, residential condominium units, or a multiple dwelling structure containing single family dwelling units for six or fewer families living independently of each other.
At least one qualifying unit must also be occupied as a principal residence, and the section ties that occupancy requirement to the mortgagor's status. If the mortgagor is an individual, the occupant must be that mortgagor, the mortgagor's spouse, or the mortgagor's descendants. If the mortgagor is a trustee of a trust or an executor or administrator of an estate, the occupant must be a beneficiary of that trust or estate, or the beneficiary's spouse or descendants. If the mortgagor is a corporation, the occupant must be persons who collectively own at least 50 percent of the corporation's voting stock, or their spouse or descendants.
The section adds that using part of the residential real estate for non-residential purposes does not change its characterization as residential real estate. It closes with a cross-reference softening its own occupancy and improvement requirements for one specific purpose: when applying the definition of “abandoned residential property” in Section 15-1200.5, residential real estate does not need to be occupied, or, if zoned for residential development, improved with a dwelling structure.
Frequently Asked Questions
What makes real estate residential under this Article?
Improvement with a single family residence, residential condominium units, or a multiple dwelling structure with single family units for six or fewer independently living families, plus occupancy as a principal residence tied to the mortgagor's status, unless a single tract of agricultural real estate over 40 acres is involved.
Does a large farm ever qualify as residential real estate?
No, a single tract of agricultural real estate consisting of more than 40 acres is excluded from the definition regardless of any residence on it.
How many dwelling units can a qualifying multiple dwelling structure have?
Single family dwelling units for six or fewer families living independently of each other.
Who must occupy the property as a principal residence when the mortgagor is a corporation?
Persons owning collectively at least 50 percent of the corporation's voting stock, or the spouse or descendants of those persons.
Does using part of the home for business defeat residential status?
No, the section states that using a portion of residential real estate for non-residential purposes does not affect its characterization as residential real estate.
Amendment History
(Source: P.A. 97-1164, eff. 6-1-13.)