Grading & Drainage: Oak Park vs Orland Park
How do grading & drainage rules compare between Oak Park, IL and Orland Park, IL?
Oak Park and Orland Park have similar restriction levels.
Oak Park, IL
Cook County
Oak Park requires grading and drainage plans for construction projects that alter the topography or drainage patterns of a property. Property owners must ensure that surface water drains properly and does not flow onto neighboring properties. Grading permits may be required for significant earthwork.
View full Oak Park rules →Orland Park, IL
Cook County
Orland Park requires that grading and drainage on private property not adversely affect neighboring properties or Village streets and storm sewers. A grading permit may be required for substantial earthwork. The Village enforces drainage complaints under property maintenance and stormwater rules. Sump pump discharge to Village streets is regulated.
View full Orland Park rules →Key Facts Comparison
| Fact | Oak Park | Orland Park |
|---|---|---|
| Grading Plan | Required with building permits | - |
| Drainage Rule | Cannot increase flow to neighbors | - |
| Downspouts | Must not connect to sanitary sewer | - |
| Retaining Walls | Permit required over 4 ft | - |
| Regional Standard | MWRD Watershed Management Ordinance | - |
| Direction | - | Away from foundation |
| Sump to Sanitary | - | Prohibited |
| Downspout Distance | - | 5+ ft from foundation |
| Permit | - | Required for major earthwork |
| Public Works | - | (708) 403-6350 |
Highlighted rows indicate differences between cities.
Oak Park FAQ
Do I need a grading permit in Oak Park?
A grading plan is required as part of most building permits. Significant earthwork may require a separate grading permit even without other construction. Contact the Building Division to determine if your project needs one.
Can I change the slope of my yard?
You may regrade your property, but you cannot alter drainage patterns in a way that increases stormwater flow onto neighboring properties. A grading plan showing existing and proposed drainage is typically required.
Can I connect my downspouts to the sewer?
Direct connection of downspouts to the sanitary sewer is not permitted. Downspouts should discharge onto your property's surface where water can infiltrate or be managed through approved drainage methods.
Orland Park FAQ
Can I regrade my Orland Park property?
Minor lawn grading is fine, but substantial regrading or fill that affects drainage requires a building or grading permit. The result must not divert runoff onto neighbors or Village streets.
Where can my sump pump discharge?
To the lot surface, a rear-yard swale, or an approved storm sewer connection. Discharge to the sanitary sewer is prohibited. Discharge that creates ice hazards on sidewalks may be cited.
My neighbor's drainage is flooding my yard. What can I do?
Contact Code Enforcement at (708) 403-6150 to investigate. Concentrated runoff diversion is a code violation. Civil remedies may also be available for property damage.
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