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About

We are OCTO Building contractors Ltd - a reliable, well established family business and our team has over 30 years building experience.

We operate in Greater London & Kent and offer an end-to-end hassle free service to all our customers.

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Q&A

Planning permission is not usually required, providing the work is internal and does not involve enlarging the building.

If your intention is to convert a garage into a separate house (regardless of who will occupy it), then planning permission may be required no matter what work is involved. We advise that you discuss such proposals with your local planning authority to ensure that any work you do is lawful and correctly permissioned.

Sometimes permitted development rights have been removed from some properties with regard to garage conversions and therefore you should contact your local planning authority before proceeding, particularly if you live on a new housing development or in a conservation area.

Where work is proposed to a listed building, listed building consent may be required.

A loft conversion for your house is considered to be permitted development, not requiring an application for planning permission, subject to the following limits and conditions:

. A volume allowance of 40 cubic metres additional roof space for terraced houses*
. A 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.

We offer a standard defects liability period of six months.

Privately-run company
Qualified & knowledgeable staff
Free design consultation [ ARB Architects Registration Board member 077011F ]
Free quotations
Competitive pricing