Although a pergola may not feel like a building, once it exceeds a certain height it no longer falls under permitted development regulations. Here's how to get your pergola height just right
Getting your pergola height right is essential to avoid certain planning regulations(Image credit: Suns Lifestyle)
If you're planning to add a pergola to your garden or patio this year, it's important to make sure your pergola height doesn't cause you unnecessary problems.
Although it may feel more like a temporary structure than something you need to get approved by your council, the reality is pergola ideas are no longer made of a simple wooden framework. With a vast array of designs and styles now available, they can be imposing structures with a very permanent feel.
We asked two pergola experts to explain not only where the cut off is with regards to pergola height and planning, but also is there a perfect pergola height and how do you decide what's right for you?
What is the standard height of a pergola and does this meet legal requirements?
When it comes to the standard pergola height, "there isn’t a standard pergola height in the UK as such, but most pergolas will have height measurements with permitted development rights in mind," says Sam Stevens, garden design expert at Pergolux UK.
"The standard height also to vary depending on what the pergola will be used for and where it'll be positioned," adds Reilly Gray, co-founder of Suns Lifestyle, "however, the most common height tends to be around 2.5m. This is the ideal height that will allow enough clearance for headroom whilst looking effortless and balanced in any garden."
"From a legal standpoint, pergola height restrictions then depend on factors such as location, property boundaries and the nature of the structure," explains Reilly.
"Generally speaking, if a pergola is within 2m of a boundary, then it should not exceed 2.5m in height. If it's freestanding and positioned further away from property lines, you may be allowed to have a taller pergola without requiring planning permission with a maximum height of 3m, however, local regulations do vary and you may need additional permissions depending on the circumstances, so it's always best to check with your local authority.
"Additionally, if your pergola is fully enclosed with walls and a roof, or if it is built as a permanent fixture, planning consent could be necessary," adds Reilly. "This is especially relevant when a pergola is permitted at the front of a property or in conservation areas, where authorities regulate external alterations."
Shape also comes into play too notes Sam Stevens, telling us that in "scenarios where your pergola has a pitched roof (A-shaped) it can be a maximum of 4m high."
Your pergola height should not exceed 2.5m if within 2m of your boundary(Image credit: Grillo)
Sam Stevens
Sam is a garden design expert at Pergolux UK, helping customers find ways to correctly incorporate pergolas into their gardens across the UK.
Reilly Gray
Reilly Gray is co-founder of British, independent, family-run outdoor living specialists, Suns Lifestyle. Specialists in high-quality, luxury outdoor structures and furniture, all of which have been designed for a true life outdoors, all-year-round.
How your pergola use affects the height and size you choose
Although there isn't a standard height per se, is the 2.5m height enough to use your pergola comfortably?
"In terms of a minimum height, you wouldn't want a pergola lower than 2m tall, as you need to have enough clearance to allow comfortable and safe movement underneath," advises Reilly Gray. "Any lower than this, and the pergola could feel restrictive, especially for taller individuals. The exact minimum height can depend on factors such as the intended use of the pergola and any furniture that will be placed underneath.
"If it's meant for year-round use, for example, then a taller structure at 2.5m with a louvred or retractable roof would be a better option to provide shelter and flexibility," explains Reilly. "Similarly, those using the space for entertaining may benefit from features like side screens and shades."
"If you’re looking to use the space for dining and entertainment then ideally you want the height to be something that will be comfortable to sit and stand under without the area feeling too cramped," confirms Sam Stevens. "You also may want to decorate your pergola and look to incorporate climbing plants, hanging baskets and pergola lights," he adds, "so if you’re looking to use your pergola in this way, then opting for the maximum height possible is always going to be your best option."
If you want to decorate your pergola with plants, opting for the maximum height is a sensible choice(Image credit: Miriam Heppell / Alamy Stock Photo)
Does your pergola location impact height?
The location of your pergola will also influence the height you choose, and are allowed to install.
"For instance, if your pergola is being installed attached to your property, then the height must align with any bi-fold doors or window heights to ensure seamless integration," says Reilly Gray, noting how pergolas fitted in this way almost serve as an extension of the home.
"On the other hand, a freestanding pergola must be positioned strategically," he explains, "taking account for sunlight, window exposure and boundary restrictions.
"If installed on a raised platform such as a balcony, veranda or on decking, planning permissions may also be required due to the increased end height. Some customers may wish to reduce the height of install before finishing the platform, and some may wish to create a cosier set up by reducing the height, or adding additional height if they’re looking to cover hot tubs or outdoor kitchen ideas for example."
"Generally, the further away from the property boundary, the higher your pergola can be (within the legal height restrictions)," adds Sam Stevens, "so standalone pergolas can be up to a maximum of 3 metres in height . As with any changes you make under permitted development rights however, you do also need to ensure that the features don’t cover more than 50% of the land around your house, and other key restrictions to take into account include whether your home is in a designated area, is a listed building, or if local councils have an Article 4 direction in place."
An Article 4 direction allows councils to remove permitted development right meaning homeowners need to seek planning permission approval instead.
Does pergola height affect the width of the pergola you can install?
In general, the height of your pergola shouldn't affect the width, "although some manufacturers do sell options though, where the higher the pergola, the wider it needs to be to support the structure," says Reilly Gray.
"The width of your pergola can be as wide as your space allows," agrees Sam Stevens, "but you do need to consider that its features should not cover more than 50% of the land around your house if you want to stay within permitted development."
In many instances, a modular pergola or bespoke option can be configured to suit so it's really a case of deciding what space you have, what you want to use it for and then checking with the manufacture what your options are to make sure it's safe, stable and fits within the regulations.
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Sarah is Homebuilding & Renovating’s Assistant Editor and joined the team in 2024. An established homes and interiors writer, Sarah has renovated and extended a number of properties, including a listing building and renovation project that featured on Grand Designs. Although she said she would never buy a listed property again, she has recently purchased a Grade II listed apartment. As it had already been professionally renovated, she has instead set her sights on tackling some changes to improve the building’s energy efficiency, as well as adding some personal touches to the interior.
