What is the Maximum Height when building my Patio?

Under "The Town and Country Planning (General Permitted Development) (England) Order 2015" the Maximum Height for raised patios or raised timber decking under the GPDO guidelines is 300mm. This rule has always been in force to protect the privacy of the adjoining neighbours, this article will explain example situations which have fallen outside the PD parameters.

PROPOSED RAISED PATIOS or TIMBER DECKING

Under the GPDO rule for Raised Decking or Hardstanding Patio to the rear or side of the amenity spaces no more than 300mm in height is allowed. Any Patio less than 300mm will fall under a Permitted Development application status. (if the property is not a flat or in a conservation area) The rule has been put in place to protect the privacy of overlooking. Garden fences are usually 1800mm high and having raised decking would cause a feeling of overlooking which would affect the right of enjoyment in the amenity of neighbouring properties. In such cases the houses have trees obscuring the view to the adjoining houses or there is a high wall or fence blocking the sight into the neighbour's gardens, this is when an application to the council would be needed to get a case officer to review the site and determine if the new decking design would affect the neighbour's privacy. If the case officer feels that no impact would arise in a raised decking design then Planning Permission will be granted. Below are two examples of types of decking arrangments, one being a low-level decking placement and the other a raised decking arrangement due to the level drop from the extension to the garden level.

CERTIFICATE OF LAWFULNESS - EXAMPLE DECKING

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Low Profile Decking Designs are very common when you need that hard-standing surface for BBQ areas or seating areas. 300mm would be the Max height to go for which would mean you have one step leading off the platform to the ground level achieving the 200mm maximum raiser height for Building Control compliance. Planning Permission is not needed with this kind of building method.

Timber Decking low profile Design - East Barnet

PLANNING CONSENT - EXAMPLE DECKING

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Raised Timber or Patios are less common and are needed when there is a large difference in levels between the house or extension floor level to the garden level. It may be the case that the property is located on a hill or there is a change in gradient in the land, either way, the property owners may want a seating area which is above the 300mm benchmark. A Planning Application will be needed or before getting drawings drawn up apply for a Pre-application meeting with the planners with photos showing the proposed works would be favourable in getting the case officer to determine if the proposed development is going to be acceptable. 

Raised Timber Decking - Waltham Cross

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CONCLUSION: Under Permitted development, any raised decking or patio area below 300mm is allowed, any higher than 300mm Planning permission is needed. The results of approval will be based on a per house merit and your case officer will be the judge of making the final decision. 
 

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DPL DESIGN TO THE RULES AND ARE REALLY NOT CONCERNED ABOUT WHAT OTHER ILLEGAL METHODS HAVE TAKEN PLACE ON OTHER HOUSES.  SUBMIT YOUR PLANS TODAY TO OBTAIN YOUR CERTIFICATE.

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