Allstate's Re-Annexation Request Hands Zoning Control to South Barrington

South Barrington now has the potential to regain zoning control and property tax revenue for a 67-acre parcel of land. Allstate has filed a petition to re-annex the property, which once served as the company's corporate campus. The land was disconnected from the village in 2023, and a Cook County judge signed off on the disconnection in 2025. This move comes in tandem with a proposal from developer Opus to build three light-industrial buildings on the site. Opus executives state that if the re-annexation is approved, they will submit formal plans to the local plan commission. The review process for construction will then move to public hearings and potential zoning changes.