Chicago Passes ADU Bill! Why a SICBS Container "Granny Flat" is the Smartest Move You Can Make

On September 25, 2025, Chicago officially passed the ADU (Accessory Dwelling Unit) bill — and it’s a game changer. Homeowners across the city can now add backyard homes, in-law suites, or rental units right on their property. It’s one of the biggest steps Chicago has taken to tackle the housing crisis, and it opens up a ton of opportunity for families.

At S.I. Container Builds, we couldn’t be more excited. Our affordable shipping container ADUs are a perfect fit for this moment. Here’s why:

Affordable and Fast

Stick-built ADUs can get pricey, fast. Our container builds use repurposed shipping containers, which keeps costs down without cutting corners. In addition, you'll get your home in weeks, not months! They’re durable, modern, and designed to slide right into a Chicago backyard.

Good for the Planet

Every container we reuse means less steel sitting idle and fewer carbon-heavy building materials being produced. Compared to a traditional ADU, a container ADU has a much lower carbon footprint. Add a green roof or solar, and your home addition becomes a climate-positive investment..

Extra Income for Families

With the new law, you can legally rent out your ADU — long-term, short-term, or keep it for family. That means extra income to help with your mortgage, taxes, or just a little more financial breathing room.

A Win for Chicago

This bill isn’t just about adding units; it’s about strengthening communities. More housing options mean more stability for families, less pressure on the rental market, and a city that grows smarter and greener.

If you’ve been waiting for the right time to invest in an ADU, this is it. Chicago is ready, and so are we. Let’s build something that works for your family and your neighborhood. Contact us here.