Shepton Mallet, Somerset
Rear extension planning drawings in Shepton Mallet
Measured survey, design options, planning drawings and the application, handled for you. If you live in Shepton Mallet 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.
We cover Shepton Mallet (BA4) as part of our Somerset work. Rear extension applications in Somerset are householder applications, which councils aim to decide within about eight weeks.
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 Shepton Mallet?
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 Shepton Mallet?
Whether your rear extension in Shepton Mallet needs a planning application depends on its size, your house and any local restrictions.
A two-storey rear extension can be permitted development in England only if it projects no more than 3 metres, stays at least 7 metres from the rear boundary, matches the existing roof pitch and has obscure-glazed upper side windows. In practice most double-storey rear extensions go through a householder planning application.
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. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Shepton Mallet like to extend?
Shepton Mallet has Victorian terraces nearer the centre and post-war semis on the edges. Sloping gardens are frequent, which affects floor levels and steps down to the patio.
How a rear extension in Shepton Mallet comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Rear extension planning drawings near Shepton Mallet
From Shepton Mallet, the nearest places we also cover are Wells (4.6 miles) and Midsomer Norton (7.1 miles).
- Rear extension planning drawings in Wells
- Rear extension planning drawings in Midsomer Norton
- Rear extension planning drawings in Street
- Rear extension planning drawings in Frome
- Rear extension planning drawings in Bath
Other work in Shepton Mallet:
FAQ
Rear extension planning drawings questions in Shepton Mallet
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.
Do you handle building control in Shepton Mallet?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
What if planning is refused?
We review the reasons with you, amend and resubmit (often free of a second fee within 12 months in England) or appeal.
Is the site visit in Shepton Mallet free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
What do rear extension planning drawings cost in Shepton Mallet?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension and £2,000–£3,500 for a two-storey scheme, covering the measured survey, design options and the application. The council fee is extra.