Washington, Tyne and Wear
Wraparound extension in Washington
We plan and build wraparound extensions for homeowners in Washington. An L-shaped extension that fills the side return and runs across the back. Start with a free site visit, then a written price once the design is agreed.
Washington sits in Tyne and Wear, with postcode districts including NE37 and NE38. In Washington we usually draw the wraparound and a simpler rear-only option side by side, so the planning risk and cost difference are clear.
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 Washington?
In Washington, our guide for a wraparound extension is £1,980–£3,240 per square metre including VAT for a standard specification. North East prices are among the lowest in our range; former mining ground is the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| L-shaped, about 22 m² of new floor | £43,500–£71,500 |
| L-shaped, about 30 m² of new floor | £59,500–£97,000 |
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 Washington?
Whether your wraparound extension in Washington needs a planning application depends on its size, your house and any local restrictions.
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 Washington like to extend?
Terraces and semis are typical around Washington. On terraces a single-storey rear extension across the back yard is usually the practical choice; semis often have room for more.
How a wraparound extension in Washington 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.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Wraparound extensions near Washington
We also build wraparound extensions in nearby Chester-le-Street (3.7 miles) and The Boldons (3.9 miles).
- Wraparound extension in Chester-le-Street
- Wraparound extension in The Boldons
- Wraparound extension in Felling
- Wraparound extension in Houghton-le-Spring
- Wraparound extension in Hebburn
Other work in Washington:
FAQ
Wraparound extension questions in Washington
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.
Do I need planning permission for a rear extension in Washington?
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.
Is it worth it over a side return alone?
If you want a dining table and a sofa as well as the kitchen, usually yes.
How much does a wraparound extension cost in Washington?
As a guide, £1,980–£3,240 per square metre including VAT for a standard specification. For example, L-shaped, about 22 m² of new floor: about £43,500–£71,500 at that rate. Your written price follows the survey.
What postcode areas do you cover around Washington?
Including NE37 and NE38, and the surrounding Tyne and Wear area.
Do you handle building control in Washington?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.