Newton Aycliffe, County Durham
Side return extension in Newton Aycliffe
Infilling the narrow passage beside a Victorian or Edwardian back addition. If you live in Newton Aycliffe and want to know what a side return extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Newton Aycliffe (DL4 and DL5) as part of our County Durham work. Side returns suit the Victorian and Edwardian terraces found across parts of County Durham, where the kitchen sits in a narrow back addition.
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 side return extension cost in Newton Aycliffe?
In Newton Aycliffe, our guide for a side return extension is £2,070–£3,420 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 |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £25,000–£41,000 |
| 2.5 m wide × 7 m deep (17.5 m²) | £36,000–£60,000 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a side return extension in Newton Aycliffe?
The planning route for a side return extension in Newton Aycliffe is set by England's householder rules and your council.
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. 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 Newton Aycliffe like to extend?
Brick terraces, colliery houses and post-war semis make up much of Newton Aycliffe. Former mining areas often need a coal mining risk check before foundations are designed.
How a side return extension in Newton Aycliffe 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
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.
Side return extensions near Newton Aycliffe
We also build side return extensions in nearby Bishop Auckland (4.9 miles) and Spennymoor (5.7 miles).
- Side return extension in Bishop Auckland
- Side return extension in Spennymoor
- Side return extension in Darlington
- Side return extension in Stockton-on-Tees
- Side return extension in Durham
Other work in Newton Aycliffe:
FAQ
Side return extension questions in Newton Aycliffe
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.
Can you match the brick or stone on my Newton Aycliffe house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Can I combine a side return with a rear extension?
Yes; that is a wraparound extension, and it gives the biggest open-plan room a terrace can have.
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.
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.
How long does a rear extension take to build in Newton Aycliffe?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.