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Aurora, IL Environmental Rules: Erosion Control (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Trigger
Building permit within platted subdivision
Required filing
Signed grading agreement with city engineer
Also certified
Storm sewer, detention basin, watermain, roads
Possible waiver
Lots with 120 ft or less frontage
Applies in
Kane, DuPage, Will, Kendall counties

Summary

Before issuing a building permit within any platted subdivision, Aurora, Illinois requires a signed grading agreement and certified storm sewer/detention systems, reviewed by the city engineer, under a citywide rule spanning Kane, DuPage, Will and Kendall counties.

Prior to the issuance of a building permit for any structure within a subdivision approved for platting or replatting: A reproducible, executed, and recorded final plat on Mylar must be filed with the city engineer; and A signed proposed grading agreement for each permit, in the form approved by the city engineer, must be filed with the city engineer. For properties not subject to an approved master grading plan, a proposed grading survey must be submitted and must include all information required in the Standard Specifications for Improvements; and The following utility facilities must have been installed, tested, approved, and made available for service to the property for which the permit is sought, as certified by the city engineer: Sanitary sewer system; Storm sewer system, including temporary or permanent retention/detention basin(s), storm sewer outlet to drain the basin(s) by gravity and the restrictor; Watermain system; Roadway system: The required roadway may be either the permanent roadway base or a temporary all-weather access roadway as approved by the city engineer. Building and occupancy permits may be withheld if these roadways are not kept free of dust or are not kept graded to a relatively smooth, hard surface after ten (10) days' written notice by certified mail or personal service on the subdivider or agent thereof.

Full Breakdown

Aurora Code of Ordinances § 43-12 conditions building permits within an approved subdivision on filing a signed grading agreement (or, absent a master grading plan, a grading survey) with the city engineer, plus certified installation of the sanitary sewer, storm sewer with retention/detention basin and restrictor, watermain and roadway systems. The city engineer may conditionally waive requirements for small-frontage lots or where a special assessment would be more efficient. The rule applies citywide, regardless of whether the parcel sits in Kane, DuPage, Will or Kendall County.

Violations & Fines

Constructing a public improvement without meeting these permit prerequisites is punishable under Aurora Code § 1-10's general penalty provision; selling or leasing a lot before a final plat is recorded carries the same penalty per lot.

Frequently Asked Questions

Do I need a grading plan before building in Aurora, Illinois?
Yes: within a platted subdivision, § 43-12 requires a signed grading agreement (or grading survey) filed with the city engineer before the city will issue a building permit.
Can Aurora waive the grading and drainage prerequisites?
Yes, the city engineer may conditionally waive them for lots with 120 feet or less of right-of-way frontage, or when a special assessment would deliver the improvements more efficiently.

Sources & Official References

Other rules in Aurora

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Erosion Control in Nearby Cities

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