Single Storey Extension

Derry Build are specialists in home extensions and provide a rapid build service for single storey extensions.
Get in touch with us for a no obligation quotation or speak to one our team to help plan your ideal home.

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Single Storey Extension

This is one of the commonly chosen types of extension. A single storey extension is constructed on one level and quite often is used to extend a kitchen space. This creates a more open plan living area on the ground floor, boosting the flexibility of the living space. 

If you stay within the below parameters, you can build a single storey extension without any planning permission:

  • Single-storey rear extensions cannot extend beyond the back wall of the original house by more than four metres if its a detached house; or more than three metres for any other houses.
  • Where not on Article 2(3) designated land or a Site of Special Scientific Interest; and subject to ‘prior approval’, the limit for single-storey rear extensions is increased to eight metres if a detached house; or six metres for any other house.
    This requires that the relevant Local Planning Authority is informed of the proposed work via a prior approval application & not full planning permission.
  • Single-storey rear extensions cannot exceed four metres in height.

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New Homes & Extensions

Having worked on commerical and domestic projects, Derry Design & Build are confident we can make your new home dream a reality by our craftmanship and attention to detail.



“The Derry team worked efficiently on our new build and we were very happy with the speed & quality of their workmanship. We love our beautiful home”


‘My friend had a new kitchen put in by Derry & I saw the quality of their work so when it came to getting my refurbishment they were my first choice. I love my new extended kitchen & would recommend Derry to friends & family.”

“The Derry team have just completed work on our Kitchen extension and refurbishment, loft conversion and new bathroom. We were extremely impressed with their professionalism and standard of their work. We are very much looking forward to moving back into our “new” home. We would not hesitate to recommend Derry Design and Build.”



Second Avenue, Enfield- Build Time: 24 weeks

Holmwood Close – Brentwood

Leighton Road – Enfield