2/17/2023

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Planning permission is not normally required. However, permission is required where you extend or alter the roof space and it exceeds specified limits and conditions.

Under new regulations that came into effect from 1 October 2008 a loft conversion for your home is considered to Planning permission and building regulations be permitted development, not requiring an application for planning permission, subject to the following limits and
conditions:

  • A volume allowance of 40 cubic metres for terraced houses
  • A volume allowance of 50 cubic metres for detached and semi-detached houses.
  • No extension beyond the plane of the existing roof slope of the principal elevation that fronts the highway.
  • No extension to be higher than the highest part of the roof.
  • Materials to be similar in appearance to the existing house.
  • No verandas, balconies or raised platforms.
  • Side-facing windows to be obscure-glazed; any opening to be 1.7m above the floor.
  • Roof extensions not to be permitted development in designated areas*.
  • Roof extensions, apart from hip to gable ones, to be set back, as far as practicable, at least 20cm from theeaves.

Designated areas include national parks and the Broads, Areas of Outstanding Natural Beauty, conservation areas and World Heritage Sites.

Please note Building Regulations are always required.

Building regulations approval is required to convert a loft or attic into a liveable space. This is extremely important if you want your Loft Conversion to be built safely and correctly.

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It was really nice to receive such a friendly service. The workmen were great- very friendly and full of information and advice. The office staff were there for us every step of the way and we were made to feel special and valued. Our final result was the icing on the cake - it was great and my wife and I are thrilled.

Sam Livesey Stockport

One of our friend's had recently had an extension with AH Building Contractor and recommended them to us. It was the best recommendation we have ever had. AH Building Contractors built a two storey rear extension which was formed into a dining room and bedroom and the results were fantastic.

Mr Crowley Stockport

We called AH Building Contractor as we wanted to create extra living space, but we were unsure which way to proceed.  The advice and professional design options they gave us was unbelievable.  We would never have thought we could create so much space and blend it so well with the existing house.  We can't wait for the dinner guests to ask 'how did you do this'  'Did you use professional interior designers' - We certainly did they are AH Building Contractor of Manchester!

Mr & Mrs Holloway Manchester