Deck & Patio Permits: Des Plaines vs Skokie
How do deck & patio permits rules compare between Des Plaines, IL and Skokie, IL?
Des Plaines has fewer restrictions than Skokie.
Des Plaines, IL
Cook County
Decks attached to a home in Des Plaines require a building permit regardless of size. Patios at grade may be permit-exempt below a threshold but still must comply with zoning, lot coverage, and floodplain rules.
View full Des Plaines rules →Skokie, IL
Cook County
Skokie requires building permits for decks and raised patios. At-grade patios may have simpler permitting but still must comply with setback and drainage rules.
View full Skokie rules →Key Facts Comparison
| Fact | Des Plaines | Skokie |
|---|---|---|
| Deck Permit | Required | Building permit required |
| Patio Permit | Often exempt under 200 sq ft | Zoning review typical |
| Footing Depth | 42 inch frost line | - |
| Guard Height | 36-42 inches | - |
| Floodplain | Additional rules apply | - |
| Guardrail Height | - | 36 inches (42 multi-family) |
| Walls Over 4 ft | - | Engineered design |
| Inspections | - | Footing, framing, final |
Highlighted rows indicate differences between cities.
Des Plaines FAQ
Do I need a permit for my Des Plaines deck?
Yes. Attached decks require a building permit regardless of size. Submit plot plan and construction details to Community Development.
What about a paver patio?
At-grade patios under a threshold (commonly 200 sq ft) may be permit-exempt but still count toward lot coverage limits. Verify with Community Development.
What if my deck is in the Des Plaines River floodplain?
Additional floodplain elevation and permit requirements apply. Contact the city's floodplain administrator before designing or applying.
Skokie FAQ
Do I need a permit for a ground-level patio?
At-grade patios typically require a zoning permit to verify setbacks and lot coverage, which is simpler than a full building permit.
How high can my deck be without guardrails?
Decks over 30 inches above grade require guardrails. Below that height, guardrails are recommended but not required.
Can I build my own deck?
Yes, homeowners may build their own decks but must pull permits and pass inspections. Complex designs may benefit from professional design.
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