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1. What permits do I need to open a business?

A Commercial Re-Occupancy Permit is required when a business moves into an existing commercial space. Depending on the type of interior modifications planned, a building permit may be required. To find information on what will be required for your specific project, contact the Commercial Plans Examiner in the Building Department at 630-260-2050.

2. Is a business license required?

A business license is required only for certain types of businesses, in accordance with Chapters 10 and 26 of the City Code. For more information, contact the City Clerk’s Office.

3. Where are the City’s Sign Codes?

Sign size, shape, location and content are regulated by Article 23 of the Zoning Ordinance (PDF).

4. What wall signage is permitted for a tenant space in an existing shopping center?

Wall signage is allowed on the front of the building, with a maximum size of 1.5 times the width of the frontage of the tenant space. For information on wall signage, see Article 23.7.2 of the Zoning Ordinance (PDF).

5. What kind of temporary signs are permitted for a business?

See Article 23.9.5 for information on Banners and Article 23.9.6 for information on Placard Signs.

6. Is any off-site advertising permitted?

No. See Article 23.4 Prohibited Signs (PDF).

7. Are inflatable devices, pendants, etc. permitted?

No. See Article 23.4 Prohibited Signs (PDF).