Tree Replacement Requirements: Chicago vs Oak Park
How do tree replacement requirements rules compare between Chicago, IL and Oak Park, IL?
Oak Park has fewer restrictions than Chicago.
Chicago, IL
Cook County
Chicago requires replacement of parkway trees damaged or removed during construction with a minimum 4-inch caliper B&B tree under MCC 10-32. The city also plants replacement trees for dead or dying parkway trees through the Bureau of Forestry.
View full Chicago rules →Oak Park, IL
Cook County
Cook County Chapter 126 may require tree replacement when trees are removed under permit. The ordinance promotes environmental conservation through replacement plantings. Specific replacement ratios are determined during the permit review.
View full Oak Park rules →Key Facts Comparison
| Fact | Chicago | Oak Park |
|---|---|---|
| Construction Replacement | Min. 4" caliper B&B for damaged trees > 4" DBH | - |
| New Development | Min. 2.5" caliper parkway trees (4" in Central Area) | - |
| Code Section | MCC 10-32, Zoning 17-11 | - |
| City Planting | Request through 311 | - |
| Appraised Value | Per MCC 10-32-200 if replacement not feasible | - |
| Code | - | Chapter 126 |
| Replacement | - | May be required with permit |
| Species | - | Determined in review |
| Fine | - | $100–$1,000 per offense |
Highlighted rows indicate differences between cities.
Chicago FAQ
What size replacement tree is required when a parkway tree is damaged in Chicago?
A minimum 4-inch caliper B&B tree as directed by the Bureau of Forestry. If a suitable replacement is unavailable, the responsible party pays the tree's appraised value per MCC 10-32-200.
Can I request a new parkway tree in front of my Chicago home?
Yes. Contact 311 or use the CHI 311 app to request a new parkway tree planting. The Bureau of Forestry manages the planting program and selects appropriate species.
Oak Park FAQ
Do I have to replace trees I remove in Cook County?
Potentially. Chapter 126 may require replacement plantings as a condition of tree removal permits. Requirements are determined during the permit review.
What replacement trees are acceptable?
Replacement species, sizes, and quantities are determined by the Department of Building and Zoning during the tree removal permit review process.
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