What the BUILD plan could mean for Chicago housing and owners

What BUILD actually proposes

At his State of the State address on February 18, 2026, Governor JB Pritzker unveiled BUILD, short for Building Up Illinois Developments, the housing centerpiece of his affordability agenda. The plan is ambitious and, in our view, aimed at the right target, which is the gap between how many homes Illinois has and how many it needs.

The core of BUILD is zoning reform. It would streamline local zoning rules and legalize a wider range of missing-middle housing statewide, including duplexes, triplexes, four-flats, and accessory dwelling units. It would also remove parking minimums within a half mile of major transit, standardize impact fees, and allow qualified third parties to sign off on permits when local approvals stall.

On the money side, BUILD sets aside 250 million dollars, with 100 million to the Illinois Housing Development Authority for middle housing, 50 million for first-time-buyer down-payment assistance, and 100 million to the Department of Commerce and Economic Opportunity for municipal infrastructure that unblocks housing projects.

• Legalize duplexes, triplexes, four-flats, and ADUs statewide.
• Remove parking minimums within a half mile of major transit.
• Standardize impact fees and allow third-party permit sign-off on local delays.
• 250 million dollars total: 100M middle housing, 50M down-payment help, 100M infrastructure.

The shortage the plan is trying to solve

BUILD did not appear in a vacuum. A 2025 report from the Project for Middle Class Renewal at the University of Illinois, produced with the Illinois Economic Policy Institute, found that the state faces a shortage of about 142,000 housing units and needs to build more than 225,000 new units over the next five years to keep pace with demand.

Those are large numbers, and they explain a lot of what Chicago owners have lived through. When supply runs that far behind a growing population and a record number of households, prices climb, listings stay scarce, and affordability erodes. It is the same shortage that has Chicago leading the nation in home-price growth this spring.

We will be candid that estimates of a housing shortfall vary by methodology and source, so the precise figure should be read as a serious order of magnitude rather than a number to the unit. But the direction is not in dispute. Illinois does not build enough homes, and that is the problem BUILD is built to attack.

Why the missing-middle angle matters for Chicago

Chicago has a deep, distinctly local tradition of missing-middle housing. The two-flat, three-flat, and four-flat are woven into neighborhoods across the city, and for generations they were a primary path to ownership and to building wealth, because an owner could live in one unit and rent the others.

Legalizing and encouraging that housing type statewide is, in our view, the most consequential piece of BUILD for Chicago specifically. ADUs, the coach houses and basement units many Chicago lots can support, are a particularly natural fit here. Making them easier to add gives existing owners a way to create rental income and gently increase supply without changing the character of a block.

We have written before about the wealth-building potential of small multi-unit and ADU strategies, and BUILD points in the same direction. If it advances, it would lower the friction on exactly the kind of incremental, owner-led housing that has historically worked well in Chicago.

Who is for it, and where the friction is

The real estate industry largely welcomed the zoning flexibility. Illinois REALTORS, led by CEO Jeff Baker, and Mainstreet REALTORS, led by CEO John Gormley, both applauded the proposal's loosening of local rules that have long constrained new construction. That support matters, because it signals the people who move property every day see the supply problem as real.

The friction is about local control. BUILD would set statewide standards that override some municipal zoning, and a number of local officials have pushed back with their own counter-proposals, arguing communities should keep authority over what gets built where. This is a genuine tension, not a manufactured one, and it is where the legislative fight will be fought.

Our honest read is that some version of this debate is healthy. The goal of more housing is right, and local input on how it is implemented is also reasonable. How those two get balanced in the final legislation is the open question.

Our view for Chicago owners

We think BUILD is pointed at the correct problem. Chicago's price strength and thin inventory are symptoms of a structural supply shortage, and you do not fix a supply shortage by wishing rates lower. You fix it by making it legal and practical to add homes, especially the modest multi-unit and accessory housing Chicago already knows how to build.

For existing owners, the most concrete near-term opportunity is the ADU and small multi-unit angle. If BUILD eases the rules on coach houses, basement units, and conversions, owners gain a path to rental income and added property value. That is worth understanding now, before the rules change, so you are ready to act if they do.

We will be plain that BUILD is a proposal, not a law, and legislation can be amended, delayed, or reshaped before it passes, so no one should make an irreversible decision on the assumption it becomes law as written. We are watching it closely and will update our read as it moves.

What to do while the policy plays out

If you own a Chicago property with room for an ADU or already have extra units, this is a good moment to get clear on your numbers. Understanding what a coach house or a converted unit could add in income and value puts you in a position to move quickly if the rules loosen.

If you are weighing whether to sell, hold, or reinvest, the supply shortage BUILD targets is the same force keeping Chicago prices firm today. That tension cuts both ways depending on your situation, which is exactly why a candid, property-specific conversation beats acting on a headline.

Whatever direction you are leaning, we are happy to give you a straight read. Reach out and we will walk through where your home and your options stand in this market.