Ashford, Surrey wraparound extensions, designed and built
We design and build wraparound extensions for houses in Ashford, Surrey, with a written price once the survey and design are done and one point of contact throughout.
- Guide price in Ashford, SurreyFrom £40,000 inc VAT
- PlanningUsually a householder application
- Build time14–20 weeks on site
- Postcode districtsTW15, TW16, TW18
Will the council need to approve it?
In England a wraparound extension is assessed as both a side and a rear extension, and the combination usually falls outside permitted development, so most need a householder planning application (£548 from 1 April 2026).
Homes in conservation areas, national parks, National Landscapes (formerly AONBs), the Broads and World Heritage Sites have tighter rules, so we always check the property's status and planning history before design starts.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
What should I budget for a wraparound extension in Ashford, Surrey?
Labour and material costs vary across the UK, so for Ashford, Surrey we use our South East England factor (×1.12). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Ashford, Surrey: £2,240 to £4,140 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| Compact L-shape 18 m² | £40,000 – £48,500 | £46,000 – £58,500 | £58,000 – £75,000 |
| Medium L-shape 25 m² | £56,000 – £67,500 | £64,000 – £81,500 | £81,000 – £104,000 |
| Large L-shape 32 m² | £71,500 – £86,500 | £82,000 – £104,000 | £103,500 – £133,000 |
Want a range for your exact size? The guide-price tool takes about a minute.
Who a wraparound extension suits
- Semi-detached houses with a side passage
- Families who want kitchen, dining and living in one space
- Terraced houses that want the largest ground floor possible
The corner is where wraparounds succeed or fail. We usually use a single steel goalpost or a corner post hidden in a pier, and set the glazing so the new room reads as one space rather than two boxes.
Local to Ashford, Surrey
Our survey diary covers Ashford, Surrey, including TW15, TW16, TW18. Nearby, we also take on projects in Staines-upon-Thames (2 miles), Sunbury-on-Thames (3 miles), Walton-on-Thames (4 miles), West Molesey (4 miles).
Homes across the South East range from Victorian terraces in the older town centres to large detached houses on the edges, so the right extension type varies street by street.
How the project works
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Wraparound extension questions answered
How long does a wraparound extension take to build in Ashford, Surrey?
On site, typically 14 to 20 weeks once approvals are in place. Before that, allow 8–16 weeks design and approvals.
Will my neighbours in Ashford, Surrey be involved?
If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Ashford, Surrey, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
How much does a wraparound extension cost?
Our guide range is about £2,240 to £4,140 per m² including VAT. A 25 m² standard-spec wraparound typically lands around £64,000 to £81,500 in Ashford, Surrey before design and council fees.
Will I need to move a drain?
Often. Side returns frequently contain a manhole or a shared drain. Building near or over a public sewer needs the water company’s consent in England and Wales, which we arrange.
Book a free site visit in Ashford, Surrey
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.