Shed & Outbuilding Permits: Chicago vs Des Plaines
How do shed & outbuilding permits rules compare between Chicago, IL and Des Plaines, IL?
Chicago and Des Plaines have similar restriction levels.
Chicago, IL
Cook County
In Chicago, sheds 70 square feet or larger require building permits. Smaller sheds under 70 sq ft are exempt. All sheds must comply with zoning setback and lot coverage requirements. The 10-day aldermanic notification period applies to shed permits but may be waived.
View full Chicago rules →Des Plaines, IL
Cook County
Des Plaines requires a building permit for sheds and accessory structures over a specified size threshold (commonly 100 sq ft). Sheds must comply with zoning setbacks (typically 3 feet from side and rear lot lines) and may be limited to one per lot.
View full Des Plaines rules →Key Facts Comparison
| Fact | Chicago | Des Plaines |
|---|---|---|
| Permit Threshold | 70 sq ft or larger | ~100 sq ft typical |
| Under 70 sq ft | Exempt from permit | - |
| Location | Rear yard only (residential) | - |
| Aldermanic Notice | 10-day period (waivable) | - |
| Side/Rear Setback | - | 3 feet typical |
| Behind Principal | - | Required |
| Height Limit | - | 15 feet typical |
| Easements | - | No structures allowed |
Highlighted rows indicate differences between cities.
Chicago FAQ
Do I need a permit for a shed in Chicago?
Yes if the shed is 70 sq ft or larger. This threshold is lower than many cities. Sheds under 70 sq ft are exempt from permits but must comply with zoning setback and lot coverage requirements.
Can I put a shed in my front yard in Chicago?
No. Sheds must be placed in rear yards in residential zones per the Chicago Zoning Ordinance.
Des Plaines FAQ
Do I need a permit for a small shed in Des Plaines?
Sheds over approximately 100 sq ft require a permit. Smaller sheds may be exempt from permit but still must comply with zoning setbacks.
How close to the property line can my shed go?
Typically 3 feet from side and rear lot lines, and behind the principal building. Cannot be placed on utility, drainage, or other easements.
Can I have multiple sheds?
Many districts limit residential lots to one accessory structure. Check zoning before adding a second shed or detached garage.
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