Do you need a permit for a pergola?

Drag the corner to your size, then tap the roof, the house or the light to match your plan. Every city and county on the ruler is one whose official rules we read, and each one turns green, amber or red for your pergola.

The 200 square feet you often read about comes from the model code most US towns start from, which exempts a one-story detached structure up to that size. But many cities and counties set their own, lower line, and 120 square feet is the most common one in the places we checked. That’s a 10×12. A 10×13 is already over it.

So if you want to skip the permit, a kit of 10×12 or smaller is the safe bet. Here’s how the common kit sizes do for a freestanding pergola with an open roof and no wiring:

How the office measures matters when you’re close to a line. Some count the footprint post to post; others count the whole roof, overhang included, as San Diego does for patio covers. A kit sold as 12×12 can have a roof a little larger than its posts, so ask which number your office uses.

Under the line still means zoning applies: setbacks from the property line, height limits and how much of the yard you can cover. Philadelphia, for example, needs no building permit up to 200 square feet but won’t allow more than 130 in a rear yard without a zoning appeal.

Browse freestanding pergolas, or go straight to 10×12 kits.

Fix a pergola to the house and almost every place treats it as an addition, which needs a permit at any size. Of the places we checked, only Portland and San Diego exempt small attached covers. If you want to avoid a permit, choose a freestanding kit and keep a gap between it and the wall.

An open roof of slats is the easy case. A roof that closes, louvered or solid, starts to look like a patio cover, and several places list patio covers as needing a permit: Las Vegas, Clark County and Riverside County among them. None of the offices we checked mentions louvers by name, so tell the office exactly what the roof does and ask how it classifies it.

A roofed kit also brings the questions the office asks about wind and snow, which is where the paperwork starts. More on that below.

Hard-wired lights, a ceiling fan or a motor almost always need an electrical permit, even where the pergola itself is exempt. In San Jose, Riverside County and Orange County, Florida, wiring also cancels the small-structure exemption. A plug-in motor on an existing outdoor outlet is the simplest route; a new outlet at a post usually means an electrician and a permit.

Florida’s new law lets owners skip a permit for work under $7,500 from 1 July 2026, but it excludes structural and electrical work and flood-hazard areas, so it doesn’t cover a pergola. In Miami-Dade, only an open pergola that isn’t roofed or wind-resistant skips the building permit; a roofed or louvered kit needs one, and in the hurricane zone the product needs a Miami-Dade approval (a Notice of Acceptance, or NOA). Check that the kit has one before you buy.

A pergola on a deck is judged with the deck, and some cities, Naperville among them, put it under the deck permit. The posts must be fixed to the deck’s framing or footings, not the boards. Pergola over a deck covers the deck check.

Getting a permit is usually cheap. Orange County, Florida, charges $12 for its small-pergola zoning permit, and Tampa lists a residential pergola permit at $177. What stops people is what the office asks for with the application.

Owners who needed a permit report the same requests again and again: engineering or stamped drawings, a wind rating, and footing specs for the posts. Tampa, for one, wants accessory-structure plans signed and sealed by a Florida architect or engineer. Many kit makers don’t supply those documents. One Florida owner was turned down because the kit wasn’t rated for the county’s 134 mph wind speed, and another returned a kit after the sealed-plan process went nowhere. Palm Beach County even warns buyers that prefab kits still need permits.

So before you order, ask the office which documents it needs for your kit, then check the seller can provide them. Here’s what the main kit brands say on their own sites:

From each brand’s own pages, read 13–14 Oct 2026. If a brand offers documents on request, get them in writing before you order.

If you need your own engineer, expect a few hundred dollars to more than a thousand: The Luxury Pergola’s standard drawings are $250, and one Florida owner was quoted $1,250 for a 240-square-foot kit. Buy where returns are easy until the office has said yes.

The city and your HOA decide separately, and one yes doesn’t carry over. Owners report city permits held up by HOA rules, and HOA approvals given for a pergola the city still needed to permit.

HOAs usually ask about materials and color, height, roof type and post size, and some ask for a wind rating. That can rule out a kit the city would pass: one HOA allowed only 6×6 posts or larger. Approvals can carry conditions and have been reversed, so get yours in writing, build exactly what was approved, and keep the letter for when you sell.

Each line comes from the city’s or county’s own code or permit guide. The size is the largest freestanding, one-story structure that needs no building permit. The model code behind most local rules says exempt work must still meet the code, so “no permit” never means “no rules.”

Enforcement usually starts with a complaint from a neighbor, not an inspector driving by. The usual outcome is a notice asking you to apply for a permit after the fact or take the structure down, and some notices are dropped once the office sees the pergola was exempt all along.

It can also come up later: when you apply for a permit for other work, or when you sell and the buyer or their HOA asks about it. If you bought a house with a pergola already on it, ask the seller for any permit or HOA approval before closing.