PATIO COVERS, DECKS, WALLS AND PAVERS: WHICH BACKYARD PROJECTS NEED A PERMIT?

It depends on what you build, how tall it is and where it sits on the lot. The starting rule is broad. In the version of Section R105.1 of the California Residential Code in Carlsbad's municipal code, a permit is required before an owner may “construct, enlarge, alter, repair, move, demolish” a building or structure, or install or alter any electrical, gas, mechanical or plumbing system.

Each city then lists a few kinds of exempt work, and those lists are local. Carlsbad's and Huntington Beach's codes adopt the 2025 California Residential Code with local amendments, under ordinances dated December 2025. The figures below are each city's adopted figures, not a statewide rule.

This guide reflects official pages read on October 4, 2026. It is general information, not legal advice. Confirm your project with your city's building and planning divisions before work starts.

Here is what each list says about common backyard items. We have shortened some conditions, so read the full item before relying on it.

• Irvine (Permits Not Required page, which shows no date or code edition): retaining walls not over 4 feet from the bottom of the footing to the top of the wall, unless supporting a surcharge; one-story detached sheds or playhouses on a single-family site up to 120 square feet; platforms, walks and driveways not more than 30 inches above grade. The page's fence item prints two heights that do not match, so ask the city for its current fence limit.
• Newport Beach (Municipal Code Section 15.02.080, amended in 2025): masonry or concrete fences not over 3.5 feet above the lowest adjacent grade and not within 3 feet of the property line; other fences not over 6 feet, except when used as a pool barrier. The Building Division's web page, which is undated, also lists platforms, decks and walks 30 inches or less over grade.
• Huntington Beach (Municipal Code Section 17.07.040): masonry or concrete fences not over 42 inches above the lowest adjacent grade; other fences not exceeding 6 feet and not within required zoning setbacks or subject to Fire Department review; retaining walls not over 4 feet from the bottom of the footing to the top of the wall, unless supporting a surcharge; one-story detached sheds, playhouses and gazebos up to 120 square feet that meet zoning setback and height rules and the Fire Code; sidewalks, platforms, decks and driveways not more than 30 inches above adjacent grade.
• Carlsbad (Municipal Code Section 18.20.030): fences not over 6 feet; retaining walls not over 4 feet from the bottom of the footing to the top of the wall, unless supporting a surcharge; one-story detached accessory structures up to 120 square feet, not on an easement or within a required setback; sidewalks and driveways not more than 30 inches above adjacent grade; decks up to 200 square feet that are no more than 30 inches above grade, not attached to a dwelling and not serving the required exit door.
• County of Orange, unincorporated areas (permit FAQ, undated): whether a wall needs a permit “depends on the height and location of your wall.” For zoning, the FAQ gives a maximum height of three and one-half feet within any required front setback area.

• Irvine: Permits Not Required (opens in a new tab)
• Newport Beach: Plan Checks, Permits & Inspections (opens in a new tab)
• Huntington Beach: Building & Inspections (opens in a new tab)
• Carlsbad: Municipal Code Section 18.20.030 (opens in a new tab)
• County of Orange: Permit FAQs (opens in a new tab)

Lists change, and the building official decides whether a project fits. None of the items above names pavers, so ask how your city treats a paver patio.

For patio covers, the agencies that address them say yes. Irvine's shed exemption carries a note that it “does not apply to patio covers which are subject to permit regardless of size.” Huntington Beach's Building page names patio covers, fences and block walls among its examples of work that requires a building permit. The County of Orange says all patio covers and trellises require Orange County Fire Authority approval.

Decks turn on height and attachment. Carlsbad's exemption leaves out a deck attached to the house. Ask your city how it classifies a pergola or louvered cover.

Irvine publishes permit application pages for built-in barbecues and outdoor kitchens and for fire pits and outdoor fireplaces. Among its rules:

• Barbecue heating elements must be at least two feet from the property line.
• An unlisted barbecue may not go under overhead combustible construction such as a wooden trellis or patio cover.
• Gas appliances such as fire pits may not be placed under combustible construction.

Wiring and gas are where exempt lists run out. Newport Beach says “moving or adding an electrical outlet requires a permit,” and so does adding a permanently wired light fixture. Carlsbad's code exempts listed cord-and-plug temporary decorative lighting, and equipment operating at less than 25 volts and not capable of supplying more than 50 watts. Read against those lists, plan on permits for new circuits, hard-wired lighting and gas lines to built-in appliances.

Pools are similar. The pool items in the four city lists cover only prefabricated pools, each with its own depth or capacity limit. Ask the city what it requires for any other pool or spa.

This guide does not cover wiring, gas piping or pool barrier rules. Ask the city inspector how the current codes apply.

Exempt from a building permit is not exempt from everything. The cities say so themselves:

• Other laws: Carlsbad's code says an exemption from a permit does not authorize work that violates the code or any other laws or ordinances of the city.
• Zoning: Irvine's fence item says the height limitations of its Zoning Code still apply. Huntington Beach's 6-foot fence exemption does not apply within required zoning setbacks.
• Trade permits: Irvine says that, unless otherwise exempted, “separate plumbing, electrical and mechanical permits will be required” for the exempted items.
• Special areas: Huntington Beach's code says an item in a Floodplain Overlay District or Environmentally Sensitive Area, or one needing discretionary Planning Division approval, is not exempt.
• HOA: Irvine tells owners to ask their homeowners association whether the project is allowed under its CC&Rs.
• Coast: Carlsbad says about 37 percent of the city is in the Coastal Zone, where either the city or the California Coastal Commission has authority to approve permits. Our coastal permit guide covers the details.

Building, zoning, HOA and coastal approvals are separate answers from separate bodies. Ask the planning and building divisions, and get HOA approval in writing.

They can on larger projects. The Department of Water Resources says all local agencies must adopt, implement and enforce the state's Model Water Efficient Landscape Ordinance or a local ordinance at least as effective.

The model applies to new construction with a landscape area of 500 square feet or more, and to rehabilitated landscapes of 2,500 square feet or more, when the project requires a building or landscape permit, plan check or design review. Patios, decks, walks and other hardscapes are not counted in the landscape area.

On drainage, the model text recommends pervious or porous surfaces, such as gravel, permeable pavers and pervious concrete. Your city's own ordinance decides what is required.

Ask the planning division whether your project triggers the city's landscape ordinance and whether it wants a landscape or drainage plan.

Government Code Section 4216.2 has an excavator delineate the area and notify the regional notification center at least two working days, and not more than 14 calendar days, before the excavation begins. California's Underground Facilities Safe Excavation Board says: “Dial 811 from anywhere to have your utilities marked within two working days!”

Who has to call? The County of Orange's permit FAQ says DigAlert must be contacted by anyone digging “except homeowners working on their own private property without the need for a permit.” It adds that homeowners “are always encouraged to get a DigAlert ticket.”

Ask your contractor who will make the 811 request and when.

• List each piece of the project with its height, area and distance to every property line.
• Compare each piece with your city's current exempt-work list and ask the building division to confirm.
• Ask the planning division about setbacks, height limits, lot coverage and coastal, flood or fire hazard zones.
• List every gas, electrical and plumbing run and ask which permits each needs.
• Get HOA approval in writing before you order materials.
• Confirm in the contract who pulls each permit and who makes the 811 request.

If you would like help sorting out which approvals your backyard project needs, Golden Empire USA offers a free assessment with a written scope.