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Chaddesden, Derbyshire

Rear extension planning drawings in Chaddesden

Measured survey, design options, planning drawings and the application, handled for you. If you live in Chaddesden and want to know what a rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.

Chaddesden and its postcode districts DE1, DE21 and DE22 are part of our Derbyshire coverage. Planning applications in Chaddesden go to the local planning authority covering Chaddesden, and we check its local design guidance for rear extensions before drawing.

Book a free site visit

Tell us about the house and we'll call to arrange a free, no-obligation visit.

What do rear extension planning drawings cost in Chaddesden?

As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. A householder planning application in England costs £548 (£575 for applications made from 8 December 2026), and a lawful development certificate for proposed work costs half the householder fee. We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.

Do you need planning permission for a rear extension in Chaddesden?

Planning for a rear extension in Chaddesden follows the English householder rules.

England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.

Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.

Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.

What are homes in Chaddesden like to extend?

Chaddesden has plenty of inter-war semis and bungalows, and single-storey rear extensions suit both.

How a rear extension in Chaddesden comes together

  1. Free site visit

    We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.

  2. Design and guide price

    Two or three layout options with a guide price for each, so you choose the design knowing what it costs.

  3. Paperwork handled

    Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.

  4. Written price, then build

    Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.

Rear extension planning drawings near Chaddesden

We also build rear extensions in nearby Oakwood (1.0 miles) and Derby (1.8 miles).

Other work in Chaddesden:

All rear extensions in Chaddesden

FAQ

Rear extension planning drawings questions in Chaddesden

What postcode areas do you cover around Chaddesden?

Including DE1, DE21 and DE22, and the surrounding Derbyshire area.

Will I need a structural engineer?

Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.

Can I see the design in 3D?

Yes; we produce simple 3D views so you can judge the size and light.

Do I need a party wall agreement?

In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.

Who will build my extension?

Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.

Can you match the brick or stone on my Chaddesden house?

We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.

Next step

See what your rear extension would cost

Get a guide price online in a couple of minutes, or book a free site visit and we'll measure up and talk you through the planning route.

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