Rear extension design, approvals and build across the UKCall 0800 088 6341 · Online guide price
Rear Extensionsrear-extensions.co.uk 0800 088 6341 Get a guide price

Great Harwood, Lancashire

Side return extension in Great Harwood

Infilling the narrow passage beside a Victorian or Edwardian back addition. If you live in Great Harwood 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 Great Harwood (BB5 and BB6) as part of our Lancashire work. Side returns suit the Victorian and Edwardian terraces found across parts of Lancashire, 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 Great Harwood?

In Great Harwood, our guide for a side return extension is £2,160–£3,570 per square metre including VAT for a standard specification. North West prices sit below our West Midlands baseline; access on terraced streets is the main variable.

Side return extension prices in Great Harwood
SizeGuide price inc VAT
2 m wide × 6 m deep (12 m²)£26,000–£43,000
2.5 m wide × 7 m deep (17.5 m²)£38,000–£62,500

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 side return extension in Great Harwood?

Here is how the rules in England apply to a side return extension in Great Harwood.

In England the side part of a side return or wraparound must meet the side-extension rules (one storey, under 4 metres high, no more than half the width of the original house), and those rights do not apply on designated land. Because a wraparound combines a side and a rear extension, many need householder planning permission.

Because rear extensions often sit on or near the boundary, the Party Wall etc. Act 1996 usually applies in England. Notices go out one or two months before work depending on the type of work, and a surveyor's award is only needed if a neighbour does not consent.

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 Great Harwood like to extend?

Great Harwood has long runs of terraced houses with back yards and alleys, plus 1930s semis further out. Yard extensions on terraces are often single-storey and close to both boundaries.

How a side return extension in Great Harwood comes together

  1. Survey visit

    We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.

  2. Design and guide price

    Two or three layout options with a guide price for each, so you choose the design knowing what it costs.

  3. Approvals

    Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.

  4. 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 Great Harwood

We also build side return extensions in nearby Accrington (3.0 miles) and Blackburn (3.9 miles).

Other work in Great Harwood:

All rear extensions in Great Harwood

FAQ

Side return extension questions in Great Harwood

Do you handle building control in Great Harwood?

Yes. We apply to the council or a registered building control approver and hand over the completion certificate.

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.

Do I need my neighbour's permission?

Not their permission, but in England and Wales you must serve party wall notices, and a neighbour can consent in writing or ask for a surveyor's award.

How long does a rear extension take to build in Great Harwood?

Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.

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.

How much does a side return extension cost in Great Harwood?

As a guide, £2,160–£3,570 per square metre including VAT for a standard specification. For example, 2 m wide × 6 m deep (12 m²): about £26,000–£43,000 at that rate. Your written price follows the survey.

Next step

See what your rear extension would cost

Get a guide price online in a couple of minutes, or book a free site visit and we'll measure up and talk you through the planning route.

CallGuide price