The best attached pergola designs are the louvered (adjustable-roof) extension, the lean-to single-slope, and the flat-roof modern profile. Each one mounts to the house with a ledger board or wall brackets, turning an existing patio or deck into a real outdoor room. Which one's right comes down to three things: your roofline, your wall type, and your climate.
An attached pergola is the shortest path from the house you've already got to the outdoor room you actually use. Instead of a freestanding structure stranded in the middle of the yard, it borrows the back wall for support and reads as part of the architecture, the way a covered porch does.
That's also why the design choices matter more here than they do for a freestanding piece. An attached pergola has to agree with the roofline above it, fasten safely to whatever your wall is made of, and shed water away from the house instead of into it. Get those three right and it looks like it came with the home. Get them wrong and it looks bolted on, or worse, it traps moisture against the siding.
Below are ten attached designs that actually work, roughly ordered from most flexible to most enclosed, then a buyer's guide on sizing, mounting, permits, and cost.
What "attached" actually means
Every attached pergola shares one detail: a horizontal beam called a ledger that fastens to the house and carries the inner edge of the roof. How that ledger connects is what separates the three mounting methods you'll see quoted:
- Wall-mounted. The ledger bolts to the wall framing through the sheathing. It's the most common method, and the one that gives you the most freedom over height.
- Eave-mounted. The structure ties into the eave or fascia of the existing roof. Handy when the wall itself is short or full of windows.
- Rafter-mounted. The ledger lands on the home's roof rafters for a rigid, high connection. Common on single-story homes where you want the pergola tucked up under the existing overhang.
The method changes the engineering, not the look. A good installer picks the one your wall can actually carry, which is the first thing to settle before you fall for any particular design.
The 10 best attached pergola designs
The adjustable-roof extension
The louvered attached pergola
An aluminum louvered roof solves the one thing a fixed roof can't: light that changes by the hour. Tilt the louvers for dappled shade at noon, close them when a storm rolls in, open them flat at dusk for the sky. Attached to the house, it works like a retractable ceiling on the room you already eat dinner in.
Best for: patios that have to work at midday and after dark, in climates with real sun and the occasional downpour.
Best Hansø fit. The Horizon for smart roof control and sensors that close the louvers on their own, or a louvered Pro+ in attached configuration.
The classic outdoor-room silhouette
The lean-to (single-slope)
A lean-to runs one continuous slope pitched away from the house. That angle earns its keep: it sheds rain and snow off the back edge instead of pooling against the wall, and it gives the structure the deliberate, built-in look of a veranda rather than a flat add-on.
Best for: homes where you want runoff sent away from the wall, and anyone who likes a clean, sloped, architectural line.
Best Hansø fit. A Pro+ in attached configuration, sloped to your roofline.
Low-profile and architectural
The flat-roof modern minimalist
A flat, horizontal plane that lines up with the home's fascia or the top of the windows. On contemporary, mid-century, or stucco houses it just about disappears into the architecture, extending rooflines that are already there instead of fighting them. Aluminum is what makes that thin, flat profile possible without sag.
Best for: modern and mid-century homes, flat or low-slope rooflines, and minimalist exteriors.
Best Hansø fit. A Pro+ or Horizon for a clean, low-profile line.
The everyday upgrade
Attached over the patio
The most common version, and the one most people actually need. Anchor a pergola to the back wall over an existing slab and a decorated patio turns into a defined room with a ceiling. The furniture you own stops floating; the space finally reads as designed instead of staged. Aim to cover about two-thirds of the patio.
Best for: suburban patios that already have the furniture but feel flat and unfinished.
Best Hansø fit. A Pro+ 10×13, sized with the 60–80% coverage rule.
Shade for the deck
Attached over a raised deck
Mounted to the house above a raised or walk-out deck, where the pergola's ledger follows the same framing logic the deck already uses. It shades a deck that otherwise bakes all afternoon, and the high connection keeps headroom generous. This is the design where flashing and a properly sized ledger matter most, since you're stacking two attached structures on one wall.
Best for: raised decks, walk-out basements, and second-story living spaces.
Best Hansø fit. A Pro+, anchored per the anchoring guide.
The space nobody uses
The narrow side-yard run
Run a wall-attached pergola down the long side of the house and a side-yard corridor becomes a linear sitting room. Depth defines the space, the wall carries half the load, and a ten-foot-deep pergola can run thirteen to nineteen feet along the wall, producing more usable square footage than a square pad ever would. The misread is treating a narrow lot as a small lot. It's just a different geometry.
Best for: narrow lots, side yards, and the strip between the house and the fence.
Best Hansø fit. A Pro+ 10×13 attached along the long wall. See it in action in our backyard transformations.
Shade and seclusion
The privacy-screened extension
An attached frame plus adjustable louvered side walls, sliding screens, or fixed panels buys you two things at once: directional shade against a low morning or evening sun, and seclusion from a close lot line or a two-story neighbor. The panels cut wind too, which is what keeps the room usable on the shoulder days an open pergola loses.
Best for: tight lot lines, overlooking neighbors, and windy or coastal exposures.
Best Hansø fit. Any Hansø pergola with added side panels. Start with our pergola privacy wall ideas.
Sun Belt shade
The poolside cabana
Run it along the pool-facing wall and you get a shaded lounge-and-changing zone right where the deck meets the house. Closed louvers drop the temperature underneath by roughly 20 to 30°F against direct sun, the difference between a pool deck you look at and one you actually sit on between eleven and four.
Best for: Sun Belt pool decks and any south-facing wall that gets punished at midday.
Best Hansø fit. The Horizon, for weather sensors that close the roof on their own when the sun crosses a set threshold.
Built for entertaining
The outdoor-kitchen cover
Anchored over a built-in grill or kitchen run along the back wall, an attached pergola protects cabinetry and appliances from sun and rain while a louvered roof vents cooking heat straight up instead of trapping it. Keep clearance above any open flame and let the louvers carry the heat, rather than boxing the run in under a solid roof.
Best for: serious cooks, frequent hosts, and permanent built-in grills.
Best Hansø fit. A louvered Horizon or Pro+ with integrated lighting over the prep zone.
The closest thing to a room
The solid or glass-roof three-season feel
A solid or glass-topped attached roof gets you closest to an actual addition: near-total rain cover, year-round use, a ceiling you can light and heat. The trade-off is light. You give up the hour-by-hour control louvers give you, so this one earns its place in genuinely rainy climates where staying dry beats chasing the sun.
Best for: rainy regions, year-round outdoor living, and homeowners who want the most enclosed option short of a sunroom.
Best Hansø fit. Compare roof options across the range on the pergola comparison page.
The 10 designs at a glance
| Design | Best for | Roof type |
|---|---|---|
| 1. Louvered extension | All-day use, sun plus occasional rain | Adjustable louvers |
| 2. Lean-to | Rain/snow runoff, sloped look | Single slope |
| 3. Flat-roof modern | Modern, mid-century, stucco homes | Flat |
| 4. Over the patio | Furnished patios that feel flat | Louvered or open |
| 5. Over a raised deck | Raised and walk-out decks | Louvered or open |
| 6. Side-yard run | Narrow lots and side yards | Louvered or open |
| 7. Privacy-screened | Close neighbors, wind, coast | Louvers + side panels |
| 8. Poolside cabana | Sun Belt pool decks | Louvered |
| 9. Outdoor-kitchen cover | Built-in grills, hosts | Louvered (vented) |
| 10. Three-season | Rainy climates, year-round use | Solid or glass |
How to choose the right attached pergola
Once you've got a design in mind, four decisions turn it into the right structure for your specific house.
Size it to the patio, not the yard
An attached pergola should cover roughly 60 to 80% of the surface under it. Drop below 60% and it reads as decoration; go over 80% and it crowds the door and the steps. The size guide walks through the math, but the short version: measure the slab first and let that set the footprint.
Match the roof to your climate
A louvered aluminum roof is the most flexible choice for most of the country, since it handles sun, rain, and stars on the same afternoon. In heavy-snow country, check the snow-load rating: premium aluminum systems carry 60+ PSF, roughly four feet of fresh snow, while budget canopies stop at 15 to 25. In hurricane and high-wind corridors, look for a true 165 mph wind rating, not vague "wind-resistant" language. Those numbers trace back to the wind and snow load standards in ASCE 7, the engineering reference behind US building codes, so a brand that quotes them is telling you it actually ran the math.
Pick a material that survives being attached
Material matters more for an attached pergola than a freestanding one, because the structure lives against your siding where water and trapped humidity collect. Powder-coated aluminum won't rot, warp, or feed mold the way wood can at that wall junction, and it carries the long flat or sloped spans these designs need. Our breakdown of aluminum versus wood covers the trade-offs in full.
Confirm your wall can carry it
The prettiest design fails if the wall behind it can't take a ledger safely. It's the step most homeowners skip, and the one most installers wish they wouldn't.
Mounting it right: walls, ledgers, flashing, and permits
An attached pergola is a structural addition, so the connection has to be done to code. Three rules carry most of the risk:
- The ledger goes into framing, not siding. Lag bolts or structural screws have to reach the studs or rim joist. A ledger fastened to sheathing or stucco alone will pull loose eventually.
- Flashing goes above the ledger, every time. Metal flashing tucked behind the siding and lapped over the top of the ledger keeps water out of the wall. Sealant isn't flashing, and it won't last. The same building-science flashing principles that protect a deck ledger apply to a pergola.
- Permits are almost always required. Because it fastens to the house, an attached pergola is treated as a structural addition by most building-code jurisdictions. Pull the permit; it protects you at resale.
How the flashing and ledger detail gets handled depends entirely on what your wall is made of:
| Wall type | What the attachment needs |
|---|---|
| Wood / fiber-cement siding | Remove a course of siding to integrate flashing with the weather-resistive barrier, then lag into the framing behind. |
| Vinyl siding | Cut back the vinyl around the ledger so flashing can lap properly; never sandwich the ledger over loose vinyl. |
| Stucco | Keep clearance at the weep screed and flash carefully; stucco hides water intrusion until it's a real problem. |
| Brick veneer | Use spacers or washers to leave a small air gap behind the ledger so the wall can drain; brick traps water if you only caulk. |
If any of that sounds like more than a weekend project, good instinct. A freestanding pergola is realistic DIY; an attached one ties into your building envelope, so it's worth having the wall connection done right.
What the design galleries don't tell you
Most "attached pergola designs" roundups stop at pretty pictures. The harder truth is that your house, not your taste, decides which of those designs will actually work. Here's what we see go wrong most often, and it's the part worth getting right before you fall for a photo.
- Picking the design before checking the wall. The cleanest louvered run still needs a wall that can carry a ledger. A window-wall or a short single-story wall often forces an eave- or rafter-mount instead, which changes the whole look. Decide what your wall allows first, then choose the design, not the other way around.
- Ignoring the roofline above the pergola. A flat attached roof tucked under a steep gable can catch snow and ice sliding off the main roof. The pitch and clearance of the pergola have to answer to what's coming down from above it, which is why the lean-to exists.
- Under-planning drainage. A freestanding pergola can drain anywhere. An attached one sheds water straight toward the house. Pitch it away from the wall, add gutters on a louvered roof, and keep the flashing honest, or you trap moisture at the exact seam you least want wet.
- Treating it like a freestanding kit. The instructions look similar, but an attached pergola penetrates your building envelope. The ledger, the flashing, and the permit aren't upsells; they're the job.
- Sizing to the yard, not the patio. Coverage is measured against the surface underneath, not the lot. A pergola that looks modest next to a big lawn can still be the right 60–80% of the patio it actually shades.
What an attached pergola costs
Open-roof pergolas, attached or freestanding, generally run about $20 to $40 per square foot for the structure. A louvered or fully engineered aluminum system costs more, because you're paying for the moving roof, the wind and snow ratings, and hardware that survives being bolted to a house for decades. It's also one of the better-value outdoor upgrades, since a permanent aluminum structure usually gets credited as a home improvement that adds resale value rather than as soft landscaping.
An attached pergola should look like the house grew it, not like you added it.
People also ask
Can you attach a pergola to any house?
Almost any house, but the method depends on the wall. Wood, fiber-cement, vinyl, stucco, and brick veneer can all carry an attached pergola, as long as the ledger fastens into the framing behind the cladding and gets flashed correctly. Brick and stucco need extra care so they don't trap water, and very tall or window-heavy walls may call for an eave- or rafter-mounted connection instead.
Is an attached or freestanding pergola better?
Attached wins when you want the structure to read as part of the house and extend an existing patio or deck, and it leans on the wall for support so it can cost less in materials. Freestanding wins when the best spot is away from the house, when the wall can't take a ledger, or when you'd rather not penetrate the building envelope. For most back-of-house patios, attached is the better call.
Do attached pergolas need a permit?
Usually, yes. Because it fastens to the house, an attached pergola counts as a structural addition in most jurisdictions, so a building permit is typically required before installation. Rules vary by city and county, so check with your local building department first. Pulling the permit also protects you when you sell.
How much does an attached pergola cost?
Open-roof pergolas usually run about $20 to $40 per square foot for the structure. Louvered and fully engineered aluminum systems cost more, since you're paying for the adjustable roof and certified wind and snow ratings. Wall type, electrical, and site prep all move the final number too.
Can an attached pergola keep the rain out?
A louvered aluminum pergola closes into a watertight roof that channels rain to built-in gutters, so the space stays dry on demand and opens back up when the weather clears. A traditional open-rafter pergola won't block rain on its own. For full, permanent rain cover, go with a louvered or solid-roof design.
What is a lean-to pergola?
A lean-to pergola is an attached structure with a single sloped roof that pitches away from the house. The slope sheds rain and snow off the back edge and gives the pergola the look of a built-in veranda, which is why it's one of the most popular attached designs.
Find the design your house can wear
Compare the three Hansø ranges side by side, or talk to a pergola expert and get a fit recommendation for your wall and climate in about ten minutes.