What do I need to obtain a building permit?

The items vary based on permit type. 

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If you are unsure if your project requires a permit, contact Community & Economic Development at 630.350.3413. Staff does not recommend proceeding with any project without obtaining the appropriate permit. You may be asked to take down or remove whatever work has been completed and start the project over in its entirety.

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1. Why do I need a permit?
2. What work requires a permit? What happens if I don't obtain a permit?
3. What do I need to obtain a building permit?
4. How long does it take to obtain a building permit? Do permits expire?
5. Who is responsible for obtaining the permit?
6. When am I obligated to contact JULIE?