Addlestone, Surrey
Two-storey rear extension in Addlestone
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. We design, get the approvals for and build two-storey rear extensions in Addlestone and the surrounding area, with one contract from the first survey to building control sign-off.
Addlestone sits in Surrey, with postcode districts including KT15. In Addlestone, a two-storey rear extension is worth comparing with the cost of moving once stamp duty, agents' and legal fees are counted.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a two-storey rear extension cost in Addlestone?
Guide prices for a two-storey rear extension in Addlestone start from our South East England rate of £2,020–£3,020 per square metre, including VAT. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £60,500–£90,500 |
| 4 m × 6 m footprint, two floors (48 m²) | £97,000–£145,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a two-storey rear extension in Addlestone?
Planning for a two-storey rear extension in Addlestone 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.
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 Addlestone like to extend?
Commuter semis and detached houses make up much of Addlestone, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a two-storey rear extension in Addlestone comes together
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.
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.
Two-storey rear extensions near Addlestone
Close by, we work in Chertsey, about 1.3 miles away, and Weybridge, about 1.5 miles away.
- Two-storey rear extension in Chertsey
- Two-storey rear extension in Weybridge
- Two-storey rear extension in Shepperton
- Two-storey rear extension in Walton-on-Thames
- Two-storey rear extension in Sunbury-on-Thames
Other work in Addlestone:
FAQ
Two-storey rear extension questions in Addlestone
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 you match the brick or stone on my Addlestone house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Will we need to move out?
Rarely. The first-floor opening is made late in the job and sealed with temporary screens.
Is the site visit in Addlestone free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Do I need planning permission for a rear extension in Addlestone?
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.
Do you handle building control in Addlestone?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.