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Yeovil, Somerset

Rear extension planning drawings in Yeovil

We plan and build rear extensions for homeowners in Yeovil. Measured survey, design options, planning drawings and the application, handled for you. Start with a free site visit, then a written price once the design is agreed.

Yeovil is covered from our Somerset round, including BA20 and BA21. Planning applications in Yeovil go to the local planning authority covering Yeovil, 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 Yeovil?

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 Yeovil?

Here is how the rules in England apply to a rear extension in Yeovil.

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. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.

What are homes in Yeovil like to extend?

Stone-built and rendered houses are common around Yeovil, so matching the walling is a design decision in its own right: natural stone, reconstituted stone or a render finish across old and new.

How a rear extension in Yeovil 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. Approvals

    Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.

  4. Build and sign-off

    We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.

Rear extension planning drawings near Yeovil

We also build rear extensions in nearby Street (13.5 miles) and Chard (15.3 miles).

Other work in Yeovil:

All rear extensions in Yeovil

FAQ

Rear extension planning drawings questions in Yeovil

Do you handle building control in Yeovil?

Yes. We apply to the council or a registered building control approver and hand over the completion certificate.

Can I get a price without a visit?

Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.

Do I need an architect?

You need accurate drawings by someone who knows householder planning; we provide them.

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.

What postcode areas do you cover around Yeovil?

Including BA20 and BA21, and the surrounding Somerset area.

Is the site visit in Yeovil free?

Yes. We visit, measure up and talk through the options with no cost and no obligation.

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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