Planning Permission

& Permitted Developments

Generally certain loft conversions with roof extensions and certain structural extensions are not permitted by planning authorities, without requisite planning permission. They will most certainly include

 

  • Listed Buildings
  • Areas of outstanding natural beauty
  • National parks and the Broads
  • Conservation areas
  • World heritage sites

Terenbuild’s experienced planning team can assist in talking to your local planning authority as to whether you can submit a planning application assessing the likelihood. We have good experience with listed properties and planning regulations in this regard.

Credentials

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Permitted Development for Roof Extensions

In the case of Roof Extensions you will need to meet the following requirements to avoid having to get loft conversion planning permission:

 

  • Volume allowance of 40 cubic metres additional roof space for terraced houses
  • Volume allowance of 50 cubic metres additional roof space 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 the original eaves
  • The roof enlargement cannot overhang the outer face of the wall of the original house.

If planning permission is required for your loft conversion, it can be processed in approximately eight weeks and costs around £150.

Our experienced planning team can help with application advice and submission technicalities in order to enhance your application to achieve its maximum potential and increase the likelihood of success

Basements

Permitted Development Criteria

Converting an existing residential cellar or basement into a living space does not usually require Planning Permission and comes under Permitted Development as long as:

• it is not a separate unit
• usage is not significantly changed
• Where a light-well is added, it does not alter the external appearance of the    property
• Basement does not extend more than 3 meters from back wall
• There is a 7 meter margin from basement boundary and opposite neighbours boundary

Planning permission may be required in the following circumstances:

• Excavating to create a new basement which involves major work
• A new separate unit of accommodation and/or alteration of the external     appearance
• Adding a light well which alters the external appearance
• The property is a Listed building

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