Conservation Areas

Designated Land includes National Parks and the Broads, Areat of Outstanding Natural Beauty, conservations areas and World Heritage Sites.

Roof extensions are NOT permitted development for houses on designated land so will therefore require a planning application.

For more information or to arrange a free design visit please contact us or call: 0800 0321030

Volume Limits

To be permitted development any additional roof space created must not exceed these volume allowances:

• 40 cubic meters for terraced houses.
• 50 Cubic meters for detached and semi-detached houses.

Please bear in mind that any previous roof space additions must be included within this volume allowance. Although you may not have created additional space a previous owner may have done also.

For more information or to arrange a free design visit please contact us or call: 0800 0321030

Fronting Highway

An extension beyond the plane of the existing roof slope of the principal elevation that fronts a highway is NOT permitted development and will therefore require planning permission

For more information or to arrange a free design visit please contact us or call: 0800 0321030

Materials

Materials MUST be in similar appearance to the existing house.

Approved documents refer to materials covered by harmonised European product standards, British Standards and other technical specifications. However, there is no obligation to adopt any particular solution contained in an approved document in order to meet functional requirements; the references are not exclusive and other materials may be suitable in the particular circumstances

For more information or to arrange a free design visit please contact us or call: 0800 0321030

Height Limits

Which conversion type you choose will depend largely on your existing loft dimensions and structure. Loft conversations require a minimum height of 2.2 metres and building regulations must also be adhered to.

No part of the extension is to be higher than the highest point of the existing roof.
(In the exception of a roof lift conversion)

For more information or to arrange a free design visit please contact us or call: 0800 0321030

Balconies

Alterations to the roof of a house involving the creation of balconies are not permitted development and will require planning permission. A balcony is defined as a platform with a rail, ballustrade or parapet projecting outside an upper storey of a building.

A ‘Juliet’ balcony, where there is no platform and therefore no external access, would be permitted development. A raised platform is any platform with a height greater than 300mm and would include roof terraces.

For more information or to arrange a free design visit please contact us or call: 0800 0321030

Windows

Any side-facing windows must be obscure-glazed and non opening unless the parts that can be opened are more that 1.7 meters above the floor of the room in which it is installed.

For more information or to arrange a free design visit please contact us or call: 0800 0321030

Distances

Roof extensions, apart from Hip to Gable ones are to be set back as far as possible, at least 20cm from the eaves.

The 20cm distance is measured from the roof line.

For more information or to arrange a free design visit please contact us or call: 0800 0321030

Protected Species

Work on a loft or roof may affect bats.

You need to consider protected species when planning work of this type. A survey may be needed, and if bats are using the building, a licence may be required.

For more information or to arrange a free design visit please contact us or call: 0800 0321030

Dormer Loft Conversion

Hip To Gable Conversion

Roof Lift Conversion

Hip End Conversion

For more information or to arrange a free design visit please contact us or call: 0800 0321030

Mansard Conversion

Cottage Dormer Conversion