What is required for my retaining wall permit?

If your proposed retaining wall is less than 4ft tall measured from the base of the footing to the top, usually a permit is not required, and may be built per the Marin County Uniform Construction Standards.

If your proposed retaining wall is greater than 4ft tall measured from the base of the footing to the top, please provide the following:

  1. A Site Plan, fully dimensioned, showing the location, extent, and height of the retaining wall in relation to any building, structure, pool, property lines and public utility easements.
  2. Detail(s) showing complete construction details with dimensions of the retaining wall. Detail(s) are to be wet stamped and signed by a California registered civil or structural engineer. For segmental gravity retaining walls, the detail(s) must clearly identify the block manufacturer, block type, drainage requirements, and maximum wall height.
  3. Structural Calculations wet stamped and signed by a California registered civil or structural engineer (or standardized engineering calculations and ICC ES Evaluation Report for applicable segmental gravity retaining walls). 
  4. A Soils Report and engineer’s conformance letter may be required.

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1. How do I get a copy of my plans?

If you want a copy of plans on file with the Town you need to complete this affidavit, get it notarized, submit it to the Building Department and then they will reach out to the design professional to complete this form.

2. How do I know if I need a building permit?
3. What is required for my kitchen and/or bathroom remodel permit?
4. What is required for my retaining wall permit?
5. What is required for my Deck, Stairs, Guardrail, and/or Landing permit?
6. What is the fence height limit?
7. What are the approved hours for construction in the town?