Walton-on-Thames, Surrey
Wraparound extension in Walton-on-Thames
An L-shaped extension that fills the side return and runs across the back. We design, get the approvals for and build wraparound extensions in Walton-on-Thames and the surrounding area, with one contract from the first survey to building control sign-off.
Walton-on-Thames and its postcode districts KT12, TW16 and TW17 are part of our Surrey coverage. Wraparound projects around Walton-on-Thames often involve two neighbours, so we start the party wall conversations early.
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 wraparound extension cost in Walton-on-Thames?
A wraparound extension in Walton-on-Thames is priced at £2,460–£4,030 per square metre including VAT as a guide, before kitchen fit-out and fees. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| L-shaped, about 22 m² of new floor | £54,000–£88,500 |
| L-shaped, about 30 m² of new floor | £74,000–£121,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a wraparound extension in Walton-on-Thames?
Planning for a wraparound extension in Walton-on-Thames follows the English householder rules.
Side return infills and the side leg of a wraparound are treated as side extensions in England: single-storey, no more than 4 metres high and no wider than half the original house. They are not permitted development in conservation areas, National Parks or National Landscapes, and a joined wraparound often needs a planning application because the side and rear rules apply together.
The Party Wall etc. Act 1996 applies in England: you serve notice two months before work to a shared wall, and one month before digging foundations within 3 metres (or 6 metres for deeper foundations) of a neighbour's building. Neighbours can agree in writing; if they dissent, surveyors agree an award.
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 Walton-on-Thames like to extend?
Commuter semis and detached houses make up much of Walton-on-Thames, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a wraparound extension in Walton-on-Thames 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.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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.
Wraparound extensions near Walton-on-Thames
We also build wraparound extensions in nearby Sunbury-on-Thames (1.2 miles) and Shepperton (1.7 miles).
- Wraparound extension in Sunbury-on-Thames
- Wraparound extension in Shepperton
- Wraparound extension in West Molesey
- Wraparound extension in Weybridge
- Wraparound extension in Esher
Other work in Walton-on-Thames:
FAQ
Wraparound extension questions in Walton-on-Thames
What postcode areas do you cover around Walton-on-Thames?
Including KT12, TW16 and TW17, and the surrounding Surrey area.
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.
What roof suits a wraparound?
A flat roof with a lantern, a standing-seam pitched roof or a glazed roof over the side leg. The choice usually follows the first-floor windows above.
Do I need planning permission for a rear extension in Walton-on-Thames?
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.
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.
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.