Our bioclimatic pergolas

Everything you need to know about your bioclimatic pergola (permits, use & maintenance)

Are you thinking about installing a sweeek bioclimatic pergola, or have you just received yours ? Here is a comprehensive guide to ensure you comply with regulations and enjoy your pergola for many years to come.

1. Do I need a permit to install my pergola ?

In most cases, you do not need planning permission to install a pergola in the UK, but there are important rules to be aware of.

1. General rules (Permitted Development)

Most pergolas are considered simple garden structures and fall under Permitted Development Rights, meaning planning permission is usually not required if :

• the pergola does not cover more than 50% of the land around the house;
• it is located to the rear of the property (not at the front);
• it complies with height limits and distance rules in relation to the property boundaries.

2. Height restrictions

To remain within Permitted Development Rights, the following limits apply :

• Within 2 metres of a boundary : maximum height of 2.5 metres ;
• More than 2 metres from a boundary : up to 3 metres in height ;
• Pergola with a pitched roof : up to 4 metres in height in some cases.
• If your pergola exceeds these limits or covers a large part of the garden, planning permission may be required.

3. When permission is required

Even though most pergolas do not need permission, there are exceptions :

• Listed buildings – any external structure may require Listed Building Consent ;
• Conservation areas or protected zones (Areas of Outstanding Natural Beauty, National Parks, etc.) – local rules may apply ;
• Pergolas installed at the front of the property or clearly visible from the street ;
• Pergolas attached to the house, which may be treated differently, especially if they exceed certain dimensions.

4. Other points to consider

Party Wall etc. Act : if the pergola is close to a shared boundary, you may need to notify your neighbour ;
Local council rules : some councils have specific interpretations or additional restrictions, so it is always advisable to check with your local council.

2. Tips for use : Managing the adjustable slats

The secret of the bioclimatic pergola lies in its slats. Here's how to use them depending on the weather :

In sunny and hot weather

• Position : Slats slightly open.
• Effect : This creates natural ventilation (chimney effect). Hot air rises and escapes, keeping you cool underneath while staying in the shade.

In case of rain

• Position : slats closed horizontally.
• Effect : the pergola forms a protective roof. Water is guided by the slats towards the gutters integrated into the structure, then drained away through the legs.
• Note : This system provides effective protection during normal rainfall. However, in exceptional weather conditions or very heavy rain, total waterproofing cannot be guaranteed.

In case of strong wind

• Position : OPEN (mandatory).
• Why ? If you leave the slats closed, the wind resistance is enormous (sail effect) and may tear the fixings from the ground or twist the structure. Let the air circulate !

3. Winter and Snow : The Golden Rule (Guarantee)

This is the most important point for the survival of your pergola.

• In case of snow : You must leave the slats in the OPEN (vertical) position.
• Why ? The weight of snow accumulated on the flat roof can quickly reach several hundred kilograms. This could cause irreversible deformation of the slats or collapse of the structure.
• In case of frost : Never force the mechanism (crank handle) if the slats are frozen shut. Wait for the frost to thaw.

Please note : Damage caused by the weight of snow (bent slats) is not covered by the warranty if the opening instructions have not been followed.

4. Maintenance : Best practices
To keep your Sweeek pergola looking like new :

• Simply clean with soapy water using a soft sponge or cloth. Rinse with clean water.
• Do not use abrasive products, chlorine or high-pressure cleaners that are too powerful on the paintwork.