Skip to content

Cotati · Building on your lot

Grading and erosion control in Cotati

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

Ask about grading and erosion control in Cotati See coverage

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

What Cotati's code says

Cotati code What Cotati's code adds
Erosion control plan
  • An erosion and sediment control plan must be part of the grading permit application.
    Applies: Applies to construction that needs a grading permit. A civil engineer or other qualified professional prepares the plan.
    § 14.36.030 · code text
    A. An erosion and sediment control plan ("plan"), prepared by a civil engineer or other professional who is qualified to prepare such a plan, shall be submitted as part of a grading permit application, and shall delineate measures to appropriately and effectively minimize soil erosion and sedimentation, comply with the design standards and construction site control measures contained in this chapter, and shall include the following:
Grading without a permit
  • Digs, fills, stockpiles of 50 cubic yards or less; stockpiles 10 days or less; fills on one lot, drainage unchanged.
    Applies: Digs under 2 feet deep, or no cut slope over 4 feet and steeper than 2:1. Fills under 2 feet, flatter than 5:1, no structures.
    § 14.34.030 · code text
    F. Stockpiling of dirt, rock, sand, gravel, aggregate or clay of fifty cubic yards or less for a period of ten days or less;
  • Basement and footing digs with a building permit; permitted wells or underground tanks of 10,000 gallons or less.
    Applies: A basement or footing dig is not exempt if it leaves an unsupported height over 5 feet after completion.
    § 14.34.030 · code text
    D. Excavations for wells or underground storage tanks no greater than ten thousand gallons in size when work is being done under the authority of a valid county well permit and/or city building permit;

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

What are the grading rules in Cotati?

Cotati's code: Digs, fills, stockpiles of 50 cubic yards or less; stockpiles 10 days or less; fills on one lot, drainage unchanged. (Digs under 2 feet deep, or no cut slope over 4 feet and steeper than 2:1. Fills under 2 feet, flatter than 5:1, no structures.) (§ 14.34.030); An erosion and sediment control plan must be part of the grading permit application. (Applies to construction that needs a grading permit. A civil engineer or other qualified professional prepares the plan.) (§ 14.36.030).

General information, not legal advice.

Ask about a specific Cotati property

Ask GoCodebook how Cotati's grading and erosion control rules apply to your situation and get an answer that cites the section.

Ask your question

More on building on your lot in Cotati

All building on your lot rules in Cotati

Fences and walls in Cotati

Sheds, garages and other accessory structures in Cotati

Running a business from home in Cotati

Building on a hillside in Cotati

Outdoor lighting in Cotati

Signs on homes in Cotati

Trash and recycling carts in Cotati

Cotati Municipal Code — full text