Nailsea, Somerset
Side return extension in Nailsea
We plan and build side return extensions for homeowners in Nailsea. Infilling the narrow passage beside a Victorian or Edwardian back addition. Start with a free site visit, then a written price once the design is agreed.
Nailsea sits in Somerset, with postcode districts including BS48. Side returns suit the Victorian and Edwardian terraces found across parts of Somerset, where the kitchen sits in a narrow back addition.
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 side return extension cost in Nailsea?
A side return extension in Nailsea is priced at £2,390–£3,950 per square metre including VAT as a guide, before kitchen fit-out and fees. 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 |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £28,500–£47,500 |
| 2.5 m wide × 7 m deep (17.5 m²) | £42,000–£69,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a side return extension in Nailsea?
Whether your side return extension in Nailsea needs a planning application depends on its size, your house and any local restrictions.
Side return infills and the side leg of a wraparound are treated as side extensions in England: single-storey, no more than 4 metres high and no wider than half the original house. They are not permitted development in conservation areas, National Parks or National Landscapes, and a joined wraparound often needs a planning application because the side and rear rules apply together.
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. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Nailsea like to extend?
Stone-built and rendered houses are common around Nailsea, 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 side return extension in Nailsea comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
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.
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.
Side return extensions near Nailsea
Neighbouring places we cover include Portishead (3.5 miles) and Yatton (4.1 miles).
- Side return extension in Portishead
- Side return extension in Yatton
- Side return extension in Clevedon
- Side return extension in Bishopsworth
- Side return extension in Bristol
Other work in Nailsea:
FAQ
Side return extension questions in Nailsea
How long does a rear extension take to build in Nailsea?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Can you match the brick or stone on my Nailsea house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Where does the drainage go?
Side passages often carry the soil and rainwater pipes. We survey them first and reroute them under the new floor where needed.
How much does a side return extension cost in Nailsea?
As a guide, £2,390–£3,950 per square metre including VAT for a standard specification. For example, 2 m wide × 6 m deep (12 m²): about £28,500–£47,500 at that rate. Your written price follows the survey.
Is the site visit in Nailsea free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
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.