When Is Open House Chicago 2024 Tickets. Alongside touring historical and architectural gems during the public fest, chicagoans can enjoy a. Every october, the chicago architecture center (cac) is proud to host open house chicago (ohc)—a free public festival that instills civic pride through providing access to places of.

Here’s a look at 13 open house chicago locations to consider checking out, along with descriptions from the chicago architecture center. Open house chicago is here!