Grading & Drainage: Des Plaines vs Schaumburg
How do grading & drainage rules compare between Des Plaines, IL and Schaumburg, IL?
Des Plaines and Schaumburg have similar restriction levels.
Des Plaines, IL
Cook County
Des Plaines requires that lot grading and drainage direct stormwater away from building foundations and not concentrate runoff onto adjacent properties. Grading plans are reviewed by Engineering as part of building permits, particularly in the City's flood-prone neighborhoods along the Des Plaines River.
View full Des Plaines 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 | Des Plaines | Schaumburg |
|---|---|---|
| Foundation Slope | 6 inches in 10 ft | - |
| Grading Plan | Required | - |
| Sump to Sewer | Prohibited | - |
| Discharge to Lot | Prohibited | - |
| Engineering | (847) 391-5390 | - |
| 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.
Des Plaines FAQ
Can my downspout drain onto my neighbor's lot?
No. Concentrated stormwater discharge directly onto an adjacent property is prohibited. Discharge to splash blocks on your own property, drywells, or storm sewer connections is appropriate.
Can I connect my sump pump to the sanitary sewer?
No. Sump pump and downspout connections to the sanitary sewer are prohibited and contribute to combined sewer overflows. They must discharge above grade or to the storm sewer.
Do I need a grading plan to replace concrete?
Minor flatwork replacement maintaining existing grades typically does not require a grading plan, but new additions or significant grading changes do require plan review by Engineering.
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.
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