(A) Any person who has or exercises control over the use of any place which could offer seclusion or shelter for the practice of prostitution who performs any of the following acts keeps a place of prostitution:
(1) Knowingly grants or permits the use of such place for the purpose of prostitution; or
(2) Grants or permits the use of such place under circumstances from which he or she could reasonably know that the place is used or is to be used for purposes of prostitution; or
(3) Permits the continued use of a place after becoming aware of facts or circumstances from which he or she should reasonably know that the place is being used for purposes of prostitution.
(B) Keeping a place of prostitution is a Class 4 felony. A person convicted of a second or subsequent violation of this section, or of any combination of such number of convictions under this section and ILCS Ch. 720, Act 5, §§ 11-14, 11-14.1, 11-15, 11-15.1, 11-16, 11-17.1, 11-18, 11-18.1, 11-19, 11-19.1, or 11-19.2 is guilty of a Class 3 felony. The fact of such prior conviction is not an element of the offense and may not be disclosed to the jury during trial unless otherwise permitted by issues properly raised during such trial.
(C) A person who violates this section within 1,000 feet of real property comprising a school commits a Class 3 felony.
(ILCS Ch. 720, Act 5, § 11-17) Penalty, see § 130.99