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Milton Keynes, Buckinghamshire

Side return extension in Milton Keynes

Thinking about a side return extension in Milton Keynes? Infilling the narrow passage beside a Victorian or Edwardian back addition. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.

Milton Keynes sits in Buckinghamshire, with postcode districts including MK3, MK4, MK5 and MK6. Side returns suit the Victorian and Edwardian terraces found across parts of Buckinghamshire, 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 Milton Keynes?

A side return extension in Milton Keynes is priced at £2,580–£4,260 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.

Side return extension prices in Milton Keynes
SizeGuide price inc VAT
2 m wide × 6 m deep (12 m²)£31,000–£51,000
2.5 m wide × 7 m deep (17.5 m²)£45,000–£74,500

These are guide ranges; the written quote after the survey is the figure that counts.

Do you need planning permission for a side return extension in Milton Keynes?

Whether your side return extension in Milton Keynes needs a planning application depends on its size, your house and any local restrictions.

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 Milton Keynes like to extend?

Around Milton Keynes the housing ranges from inter-war semis to 1960s and 1970s estates with good-sized gardens. Many of the newer estates had permitted development rights removed by condition, so we check the planning history before anything is drawn.

How a side return extension in Milton Keynes comes together

  1. 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.

  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. Paperwork handled

    Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.

  4. 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.

Side return extensions near Milton Keynes

We also build side return extensions in nearby Newport Pagnell (3.5 miles) and Bletchley (3.5 miles).

Other work in Milton Keynes:

All rear extensions in Milton Keynes

FAQ

Side return extension questions in Milton Keynes

What postcode areas do you cover around Milton Keynes?

Including MK3, MK4, MK5, MK6, MK10 and MK13, and the surrounding Buckinghamshire area.

How long does a rear extension take to build in Milton Keynes?

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

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.

Can you match the brick or stone on my Milton Keynes house?

We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.

Do you handle building control in Milton Keynes?

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

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.

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.

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