Planning Application Drawings

After an initial consultation to determine your requirements, we will visit site and carry out a measured survey.

From these measurements we will produce existing and proposed CAD drawings showing your proposals and if need be can provide an artist’s impression of the new extension. Fees are based on the size of the project and work involved and do not include planning or structural engineer fees.

We will advise if your extension requires planning and submit the forms and drawings and on your behalf if it does, acting as a planning agent. From 2008 an extension or addition to a home will be considered to be permitted development not requiring permission for planning permission subject to the following limits and conditions.
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• No more than half the area of land around the ‘original house’* would be covered by additions or other buildings.
• No extension forward of the principal elevation or side elevation fronting a highway.
• No extension to be higher than the highest part of the roof.
• Single-storey rear extension must not extend beyond the rear wall of the ‘original house’* by more than three metres if an attached house or by four metres if a detached house.
• Maximum height of a single-storey rear extension of four metres.
• Maximum depth of a rear extension of more than one storey of three metres beyond the rear wall of the ‘original house’* including ground floor.
• Maximum eaves height of an extension within two metres of the boundary of three metres.
• Maximum eaves and ridge height of extension no higher than existing house.
• Side extensions to be single storey with maximum height of four metres and width no more than half that of the original house.
• Two-storey extensions no closer than seven metres to rear boundary.
• Roof pitch of extensions higher than one storey to match existing house.
• Materials to be similar in appearance to the existing house.
• No verandas, balconies or raised platforms.
• Upper-floor, side-facing windows to be obscure-glazed; any opening to be 1.7m above the floor.
• On designated land** no permitted development for rear extensions of more than one storey.
• On designated land no cladding of the exterior.
• On designated land no side extensions.

* The term “original house” means the house as it was first built or as it stood on 1 July 1948 (if it was built before that date). Although you may not have built an extension to the house, a previous owner may have done so.

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

It is advisable though for each application to seek confirmation in writing off the local authority as each local authority has its own interpretation on the conditions. Some local authorities charge for this (approx £20).

Planning fees are usually approx £150 and will require a location map to be purchased which is approx £30.

Most extensions will require Building regulations consent and we will produce the drawings and advise on a structural engineer or appoint one on your behalf as most will require structural calculations as part of the application .As per the planning process we will submit these drawings to the local Authority. Building regulations fees are calculated on the size of the extension and are paid in two stages a plan charge when depositing plans and an inspection charge when work is complete and a building inspector visits to inspect work.

The local Authority will issue a letter of acknowledgement of receipt of the planning / building regulations and publish the application for public viewing allowing for comments. A decision on the application from this point will normally take 6-8 weeks.

Should the application be successful you can use the drawings to obtain quotes and then appoint a builder.