Double Storey Extension

Derry Build are specialists in home extensions and provide a rapid build service for double 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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Double Storey Extension

Double storey extensions are built from two levels of the property. It is a great choice to maximise the space in your property and a better economic choice than upsizing to a larger property. This will largely depend on the layout of your home and commonly used in semi-detached and detached homes.

For this type of extension, you will always need to apply for planning permission before building.

All side and rear extensions of one more than one storey will require planning permission.

Furthermore, it must meet the following requirements:

  • Extensions of more than one storey must not extend beyond the rear wall of the original house by more than three metres or be within seven metres of any boundary opposite the back wall of the house.
  • Roof pitch must match the current house as far as practicable
  • Any upper-floor window located in a ‘side elevation’ must be obscure-glazed; and non-opening (unless the openable part is more than 1.7 metres above the floor).


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.”



Completion Documents

Leighton Road – Enfield

Second Avenue, Enfield- Build Time: 24 weeks