Homeowner guide
Walnut Creek permits and HOA approval for hardscape
Short answer
Many patios and walkways don't need a city permit, but retaining walls above certain heights or holding up a slope or structure, work in the public right of way (sidewalk, curb, driveway approach) and some drainage changes can need City of Walnut Creek review. HOA homes, including Rossmoor, usually need association approval first. Confirm with the city's building and engineering divisions for your address.
Retaining walls
Whether a wall needs a permit depends mainly on its height and on what it holds back, such as a slope, a driveway or a building. Walls on hillside lots are more likely to need review.
Rules and height limits can change, so check the current requirements with the City of Walnut Creek building division. Alonso will tell you at the estimate if your wall may need review.
Driveways, sidewalks and curbs
Work on your own lot is different from work on the public side of the property line. Changing the driveway approach, curb or city sidewalk usually involves the city's engineering division.
Drainage
Water must go to a proper outlet and never be sent onto a neighbor's property. Connecting to the street or storm system can involve the city, so ask before planning that route.
Rossmoor and other HOAs
If you live in Rossmoor or another community with an HOA, get the association's approval before work starts. Associations commonly ask for a description of the work, a layout and material samples.
We provide the scope, layout information and samples your association asks for.
What to do next
Ask Alonso at the free estimate which parts of your job may need review. Then confirm with the City of Walnut Creek and your HOA before work starts.