Weston-super-Mare, Somerset
Terraced house rear extension in Weston-super-Mare
We plan and build rear extensions for terraced houses for homeowners in Weston-super-Mare. Rear and side return extensions for terraces, with access through the house and two neighbours. Start with a free site visit, then a written price once the design is agreed.
Weston-super-Mare and its postcode districts BS22 and BS23 are part of our Somerset coverage. Terraced streets make up much of the housing in parts of Somerset, and most rear extensions here go in without side access.
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 terraced house rear extension cost in Weston-super-Mare?
In Weston-super-Mare, our guide for a terraced house rear extension is £2,130–£3,430 per square metre including VAT for a standard specification. South West prices run slightly above our West Midlands baseline; natural stone to match the house is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £29,000–£46,500 |
| 3 m wide × 6 m deep (18 m²) | £38,500–£62,000 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a terraced house rear extension in Weston-super-Mare?
Here is how the rules in England apply to a terraced house rear extension in Weston-super-Mare.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.
The Party Wall etc. Act 1996 applies in England: you serve notice two months before work to a shared wall, and one month before digging foundations within 3 metres (or 6 metres for deeper foundations) of a neighbour's building. Neighbours can agree in writing; if they dissent, surveyors agree an award.
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 Weston-super-Mare like to extend?
Stone-built and rendered houses are common around Weston-super-Mare, so matching the walling is a design decision in its own right: natural stone, reconstituted stone or a render finish across old and new.
How a terraced house rear extension in Weston-super-Mare comes together
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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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.
Terraced house rear extensions near Weston-super-Mare
Neighbouring places we cover include Yatton (7.2 miles) and Burnham-on-Sea (7.5 miles).
- Terraced house rear extension in Yatton
- Terraced house rear extension in Burnham-on-Sea
- Terraced house rear extension in Clevedon
- Terraced house rear extension in Penarth
- Terraced house rear extension in Nailsea
Other work in Weston-super-Mare:
FAQ
Terraced house rear extension questions in Weston-super-Mare
How much does a terraced house rear extension cost in Weston-super-Mare?
As a guide, £2,130–£3,430 per square metre including VAT for a standard specification. For example, 3 m wide × 4.5 m deep (13.5 m²): about £29,000–£46,500 at that rate. Your written price follows the survey.
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.
Can a terrace have a two-storey rear extension?
It is possible but harder to get through planning because of the effect on both neighbours.
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.
How long does a rear extension take to build in Weston-super-Mare?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.