CHICAGO (WLS) -- Demolition plans are moving forward at the Thompson Center.
The city has granted permits to begin work demolishing the exterior and atrium of the iconic downtown building.
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Google purchased the Thompson Center last year and plans to transform it into the company's Chicago headquarters.
ABC7 has reached out to Google for comment but haven't yet gotten a response.
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The state of Illinois will move its workers from the Thompson Center to a building on South LaSalle.