Oak Lawn vs Skokie
How do grading & drainage rules compare between Oak Lawn, IL and Skokie, IL?
Oak Lawn and Skokie have similar restriction levels.
Oak Lawn, IL
Cook County
Oak Lawn requires new construction and significant improvements to maintain positive drainage away from structures without adversely affecting neighboring properties. Grading plans are reviewed at building permit. Surface water may not be discharged directly onto adjacent properties.
View full Oak Lawn rules →Skokie, IL
Cook County
Skokie requires that lot drainage be managed so that stormwater flows to public streets, alleys, or storm sewers and does not adversely affect neighboring properties. Grading plans are reviewed by Public Works and Community Development for new construction, additions, and major landscaping projects. Alterations that redirect water onto neighbors violate the municipal code.
View full Skokie rules →Key Facts Comparison
| Fact | Oak Lawn | Skokie |
|---|---|---|
| Slope from Foundation | 2% minimum | - |
| Extension | 10 feet from foundation | - |
| Downspout to Sewer | Prohibited | - |
| Sump to Yard | Not to sanitary | - |
| Final Inspection | Required pre-CO | - |
| Positive Drainage | - | Away from structures |
| Neighbor Drainage | - | Cannot redirect harmfully |
| Downspouts | - | Not to sanitary sewer |
| Retaining Walls | - | Engineered over 4 ft |
| Minimum Slope | - | 2% from foundation |
Highlighted rows indicate differences between cities.
Oak Lawn FAQ
Can water from my yard drain to my neighbor's?
Not as a result of your grading changes. Oak Lawn's rules prevent creating new or increased drainage onto neighboring properties. Preserve or re-establish historic drainage patterns.
Where should my downspouts discharge?
Discharge away from foundations to the yard where water can infiltrate or flow to the street. Do not connect downspouts to the sanitary sewer.
Do I need a grading plan for an addition?
Yes for significant additions or new construction. A grading plan by a licensed surveyor or engineer is reviewed at building permit.
Skokie FAQ
Do I need a permit to regrade my yard?
Major grading, retaining wall construction, or projects that change drainage patterns may require a permit. Minor landscaping without altered drainage typically does not. Contact Community Development before significant projects.
My neighbor's drainage is flooding my yard. What can I do?
Report to Skokie Public Works at (847) 933-8427. The Village can investigate whether modifications violate drainage rules. Civil remedies are also available through private legal action.
Where should my sump pump discharge?
To your own property, ideally toward the street, alley, or storm inlet. It may not connect to the sanitary sewer, and the discharge cannot be concentrated onto neighboring property.
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