Cook County 6B Program

The Cook County 6b program reduces the overall property tax bill for industrial and warehouse buildings over the course of 12 years. Under the 6b program, qualifying properties will be assessed at 10% of market value for the first 10 years, 15% in the 11th year, and 20% in the 12th year. In the year 13, the property is assessed at the normal assessed value of 25% of market value.

Real estate is eligible for Class 6b status if it is used primarily for "industrial purposes" and is either (a) new construction, (b) substantial rehabilitation, or (c) substantial re-occupancy of "abandoned" property.

Program Documents

• Village of Northbrook's Cook County Class 6b Application Form (PDF)
• Cook County Class 6B Eligibility Bulletin (PDF)
• Cook County Class 6B Eligibility Application (PDF)
• Summary of Cook County's Class 6b Process for Projects involving:
  • "Substantial Re-Occupancy of Abandoned Property" or "Substantial Rehabilitation and Re-Occupancy of Abandoned Property" (PDF)
  • "New Construction" or "Substantial Rehabilitation" (PDF)

For more information regarding the Cook County Class 6B Classification Incentive, contact Michaela Kohlstedt, Director of Development and Planning Services, at 847-664-4051, or by email.

Other Incentives

If your business does not qualify for any of the above programs, please contact the Development and Planning Services Department. We are happy to discuss your needs and determine if the Village of another governmental entity may be able to assist you.