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Brentwood · Building on your lot

Grading and erosion control in Brentwood

Brentwood's own rules on grading and erosion control, with the code text for every value.

Each rule below links to the section of the Brentwood Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What Brentwood's code says

Brentwood code What Brentwood's code adds
Erosion control plan
  • A stormwater pollution prevention plan with erosion controls, plus a notice of intent to the Regional Water Quality Control Board.
    Applies: Grading projects of 1 acre or more.
    § 15.52.030 · code text
    no permit shall be granted for any project of one acre or more in size until the applicant has filed a notice of intent (NOI) with the Regional Water Quality Control Board (RWQCB)
Grading without a permit
  • 50 cubic yards or less, on a disturbed site up to 10,000 square feet with slopes under 10%.
    Applies: All criteria must be met, including no blocked drainageway and no work within 50 feet of a watercourse.
    § 15.52.030 · code text
    Volume of soil or earth materials disturbed or stored is fifty cubic yards or less;
  • 25 cubic yards or less is always exempt.
    Applies: Total material disturbed, stored, disposed of or used as fill.
    § 15.52.030 · code text
    any activity where total volume of material disturbed, stored, disposed of or used as fill does not exceed twenty-five cubic yards is always categorically exempt from the permit requirements;

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

What are the grading rules in Brentwood?

Brentwood's code: 50 cubic yards or less, on a disturbed site up to 10,000 square feet with slopes under 10%. (All criteria must be met, including no blocked drainageway and no work within 50 feet of a watercourse.) (§ 15.52.030); A stormwater pollution prevention plan with erosion controls, plus a notice of intent to the Regional Water Quality Control Board. (Grading projects of 1 acre or more.) (§ 15.52.030).

General information, not legal advice.

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