East Sussex
Rear extensions for terraced houses in East Sussex
Rear and side return extensions for terraces, with access through the house and two neighbours. 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.
Terraced streets make up much of the housing in parts of East Sussex, and most rear extensions here go in without side access. 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.
How much does a terraced house rear extension cost in East Sussex?
Guide prices for a terraced house rear extension in East Sussex start from our South East England rate of £2,300–£3,700 per square metre, including VAT. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £31,000–£50,000 |
| 3 m wide × 6 m deep (18 m²) | £41,500–£66,500 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission in East Sussex?
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part is within 2 metres of a boundary.
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.
Where in East Sussex do we work?
FAQ
Questions people ask
Can you build without side access?
Yes. Materials come through the house in protected runs or over the roof by crane on tight sites.
Do both neighbours need party wall notices?
Usually yes in England and Wales, because the extension often sits on or near both boundaries.
How deep can I go on a terrace?
3 metres under permitted development in England, or up to 6 metres with prior approval outside designated land.
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.