Michael Obrien sells 3939 N. Kostner Ave., Chicago

The home at 3939 N. Kostner Ave., Chicago, Cook County, was sold on June 17 by Michael Obrien for $570,000.

Chicago Title Land Trust Co. (trustee) and Trust Number 9002351732 were listed as the buyers.

Property taxes on the home totaled $5,208 in 2024, or 0.9% of the sale price.

This property is one of 3,131 sales in Chicago, Cook County, between May 17 and June 17.

This article is based on data published by BlockShopper.com.

U.S. home prices continued to rise in 2025, with the national median reaching about $447,000 in June. That's up 1.13% from a year earlier, according to Redfin. The data also show a significant gap in supply and demand, with 36% more sellers than buyers (a difference of 508,715 homes). By Redfin’s definition, a balanced market has seller and buyer numbers within 10% of each other.