Eastleigh, Hampshire
Rear extension planning drawings in Eastleigh
Thinking about a rear extension in Eastleigh? Measured survey, design options, planning drawings and the application, handled for you. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
Eastleigh is covered from our Hampshire round, including SO50 and SO53. Rear extension applications in Hampshire 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 Eastleigh?
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. These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a rear extension in Eastleigh?
Planning for a rear extension in Eastleigh follows the English householder rules.
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 Eastleigh like to extend?
Commuter semis and detached houses make up much of Eastleigh, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a rear extension in Eastleigh comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
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 Eastleigh
Neighbouring places we cover include Bishopstoke (0.9 miles) and Fair Oak (2.3 miles).
- Rear extension planning drawings in Bishopstoke
- Rear extension planning drawings in Fair Oak
- Rear extension planning drawings in Portswood
- Rear extension planning drawings in Hedge End
- Rear extension planning drawings in Southampton
Other work in Eastleigh:
FAQ
Rear extension planning drawings questions in Eastleigh
Do I need planning permission for a rear extension in Eastleigh?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.
What postcode areas do you cover around Eastleigh?
Including SO50 and SO53, and the surrounding Hampshire area.
Can I see the design in 3D?
Yes; we produce simple 3D views so you can judge the size and light.
Do you handle building control in Eastleigh?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
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.
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.