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Amersham on the Hill, Buckinghamshire

Wraparound extension in Amersham on the Hill

For homes in Amersham on the Hill, a wraparound extension is often the simplest way to gain space without moving. An L-shaped extension that fills the side return and runs across the back. We take it from survey to completion certificate.

Amersham on the Hill sits in Buckinghamshire, with postcode districts including HP5, HP6 and HP7. In Amersham on the Hill 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 Amersham on the Hill?

Guide prices for a wraparound extension in Amersham on the Hill start from our South East England rate of £2,460–£4,030 per square metre, including VAT. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.

Wraparound extension prices in Amersham on the Hill
SizeGuide price inc VAT
L-shaped, about 22 m² of new floor£54,000–£88,500
L-shaped, about 30 m² of new floor£74,000–£121,000

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

Do you need planning permission for a wraparound extension in Amersham on the Hill?

Planning for a wraparound extension in Amersham on the Hill follows the English householder rules.

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. 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 Amersham on the Hill like to extend?

Amersham on the Hill has a mix of Victorian terraces near the centre and larger Edwardian and inter-war houses further out. Clay soils across much of the South East mean deeper foundations near trees, which we plan for at the survey.

How a wraparound extension in Amersham on the Hill comes together

  1. Look round and measure

    A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.

  2. Options and costs

    We draw layout options and price each one, so the budget shapes the design rather than surprising you later.

  3. Paperwork handled

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

  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.

Wraparound extensions near Amersham on the Hill

We also build wraparound extensions in nearby Amersham (0.7 miles) and Chesham (1.8 miles).

Other work in Amersham on the Hill:

All rear extensions in Amersham on the Hill

FAQ

Wraparound extension questions in Amersham on the Hill

Is the site visit in Amersham on the Hill free?

Yes. We visit, measure up and talk through the options with no cost and no obligation.

Do I need planning permission for a rear extension in Amersham on the Hill?

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.

How long does a wraparound take?

Usually 14 to 20 weeks on site, longer than a plain rear extension because of the steelwork.

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.

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.

What postcode areas do you cover around Amersham on the Hill?

Including HP5, HP6 and HP7, and the surrounding Buckinghamshire area.

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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