OAK PARK, ILL. — Interra Realty has brokered the $1.4 million sale of a condo deconversion in Oak Park, a suburb of Chicago. The buyer intends to convert the property’s 10 condominiums into apartment rental units. Built in the 1950s and located on Marion Street, the property features a mix of one- and two-bedroom floor plans. Patrick Kennelly of Interra represented the sellers through the condominium’s association and also procured the undisclosed buyer. The sales price equates to approximately $145,000 per unit. Under the Condominium Property Act in Illinois, condo unit owners can elect to sell a condo property if 75 percent or more are in agreement. Sellers then have the option to either move out or lease back the unit from the new owner.