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West Wales

Knocking through to a rear extension in West Wales

Steel beams, padstones and props to open the back of the house safely. Across West Wales we handle the whole rear extension: survey, drawings, the planning route, building control and the build. Towns we cover here include Llanelli, Aberystwyth and Carmarthen.

Back wall of a house removed during an extension build with a red steel beam on padstones and temporary props

Older houses in West Wales often have solid brick back walls carrying a lot of weight, so the steel design comes early. West Wales has Victorian terraces near the centre and semis further out. Welsh permitted development allows up to 4 metres at the rear for many houses.

What does it cost in West Wales?

As a guide, £3,500–£9,000 including VAT. Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.

What approvals does it need in West Wales?

In Wales a rear extension needs Building Regulations approval through the council or a registered approver, and is built to the Welsh Approved Documents, which differ from England's in places, including energy efficiency.

Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent.

Where in West Wales do we work?

FAQ

Questions people ask

Can the whole back wall come out?

Often, with a beam across the full width or a goalpost frame. Some walls need a short pier left at the ends.

Do I need building control for a beam?

Yes. The calculations and the installed steel are checked.

How long does it take?

The wall itself usually comes out in a day or two, timed for when the extension is weathertight.

Do you cover all of West Wales?

We cover 6 towns and districts in West Wales, including Llanelli, Aberystwyth and Carmarthen.

Who builds the extension?

Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.

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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