East Sussex
Knocking through to a rear extension in East Sussex
Steel beams, padstones and props to open the back of the house safely. We design and build rear extensions across East Sussex, from Brighton and Eastbourne to Hastings, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.

Older houses in East Sussex often have solid brick back walls carrying a lot of weight, so the steel design comes early. East Sussex 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.
What does it cost in East Sussex?
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 East Sussex?
Every rear extension in England needs Building Regulations approval, whether or not planning is needed. You can use the council's building control service or a registered building control approver, by full plans (checked before work, usually within five weeks) or a building notice, and you get a completion certificate at the end.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent.
Where in East Sussex 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 East Sussex?
We cover 15 towns and districts in East Sussex, including Brighton, Eastbourne and Hastings.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.