Oak Lawn vs Schaumburg
How do grading & drainage rules compare between Oak Lawn, IL and Schaumburg, IL?
Oak Lawn and Schaumburg 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 →Schaumburg, IL
Cook County
Schaumburg requires grading permits for projects that alter the grade or drainage patterns on residential property. The Village enforces grading standards to prevent stormwater from being directed onto neighboring properties and to protect the Salt Creek watershed. All grading must maintain positive drainage away from structures and toward approved discharge points. The Cook County Watershed Management Ordinance provides additional oversight for larger projects.
View full Schaumburg rules →Key Facts Comparison
| Fact | Oak Lawn | Schaumburg |
|---|---|---|
| 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 | - |
| Permit Required | - | Yes, for significant grade changes |
| Drainage Direction | - | Must flow away from structures |
| Neighbor Impact | - | Cannot direct water onto neighbors |
| Engineer Plan | - | May be required for larger projects |
| Soil Type | - | Clay-heavy, poor natural drainage |
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.
Schaumburg FAQ
Do I need a grading permit in Schaumburg?
A permit is required for significant grade changes including regrading, adding fill, and constructing retaining walls. Contact the Village Engineering Division to determine if your specific project requires a permit.
Can I redirect drainage on my property?
You may improve drainage on your property but must not direct stormwater onto neighboring properties. All drainage must flow toward approved discharge points. A drainage plan may be required to verify compliance.
Where should my sump pump discharge?
Sump pump discharge is typically directed to the yard, allowing it to be absorbed or flow to the street. Direct connections to the storm sewer may be restricted in some areas. Check with the Village Engineering Division for your specific location.
Compare other topics
See how Oak Lawn and Schaumburg compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool