Chicago’s $2.1B Office Conversion Wave Is Reshaping Downtown

CHICAGO—Downtown Chicago’s shift from a traditional office district toward a more mixed-use residential neighborhood is accelerating, with 35 office-to-residential conversion projects now representing an estimated $2.1 billion in investment and at least 4,466 new housing units.

The count includes projects that are proposed, underway, or completed, reflecting a broader effort to give underused downtown office buildings a new purpose as companies continue adjusting their space needs after the rise of hybrid work.

Why Chicago Offices Are Becoming Apartments

Hybrid work has changed demand for traditional downtown office space, leaving some older buildings with substantial vacancies and creating opportunities for residential conversion.

Chicago is already seeing that transition at scale. As of July 2026, city officials counted 26 office-to-residential projects underway Downtown, representing approximately $1.8 billion in investment and more than 4,000 residential units. The broader 35-project, $2.1 billion figure also includes conversions that are proposed or already completed.

Path Construction and WindWave Real Estate plan to convert upper floors of the Chicago office building at 111 W. Illinois St. into 153 apartments. (Justin Schmidt/CoStar)

“Office-to-residential conversions are driving downtown investment and supporting a healthy mixed-use environment,” Chicago Department of Planning and Development Commissioner Ciere Boatright said while announcing the conversion of 500 N. Michigan Avenue.

Adding more residents downtown could create activity beyond the traditional Monday-through-Friday workday, supporting restaurants, retailers, entertainment, transit, and neighborhood businesses throughout the city’s core.

Major Office Conversions Are Moving Forward

Several high-profile projects show how quickly the trend is taking shape.

At 500 N. Michigan Ave., construction recently began on a $162 million conversion that will transform underused office space into 320 apartments, including 64 affordable units. Retail and commercial uses will remain on the lower floors.

The city’s LaSalle Street revitalization effort is another major part of the transformation. Six adaptive reuse projects represent more than $900 million in investment, more than 2 million square feet of converted space, and 1,765 mixed-income apartments.

The Chicago Board of Trade Building looms over LaSalle Street in the Loop

At 30 N. LaSalle St., a $130 million redevelopment will convert approximately 19 floors into 349 apartments, including 105 affordable units. The project received approval for up to $57 million in Tax Increment Financing.

Another private project at 19 S. LaSalle St. is moving forward with financing to transform approximately 207,000 square feet of offices into 207 apartments, along with ground-floor retail.

More Housing Could Reshape the Loop

For decades, much of Chicago’s central business district was built around workers arriving in the morning and leaving after the workday.

Thousands of additional residents could gradually make parts of the Loop and LaSalle Street corridor feel more like full-time neighborhoods, creating additional demand for grocery stores, restaurants, services, parks, and other amenities.

Office conversions also provide another path for adding housing without requiring an entirely new tower to be constructed from the ground up.

That does not mean every empty office building can easily become apartments. Conversions can require expensive changes to plumbing, ventilation, elevators, windows, mechanical systems, and interior layouts. Financing remains another major challenge, which is why some projects are using TIF funding, historic tax credits, tax incentives, and private capital to make the numbers work.

What Could This Mean for Chicago Real Estate?

The $2.1 billion office conversion wave is another indication that Downtown Chicago is becoming increasingly residential.

For buyers, renters, and investors, thousands of new apartments could bring additional housing choices while increasing competition among existing rental buildings. More residents may also support restaurants, retail, entertainment, and services on blocks that were previously dominated by offices.

For condominium owners and buyers, the impact will likely vary by location. Areas around LaSalle Street, the Loop, Streeterville, and the Magnificent Mile could see meaningful changes as more conversions move from planning into construction and eventually welcome residents.

The transformation will take years, but 35 projects and more than 4,400 planned residences show that Chicago developers are making a substantial bet on a more residential future for Downtown.

Thinking About Buying or Investing in Downtown Chicago?

Office conversions, new apartments, public investments, and major redevelopment projects can change the character and long-term outlook of individual downtown blocks.

Connect with The Cory Tanzer Group at Option Premier for local guidance when comparing Downtown Chicago condos, investment properties, new developments, neighborhood trends, and emerging opportunities across the city.

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