Bath, Somerset
Side return extension in Bath
Infilling the narrow passage beside a Victorian or Edwardian back addition. If you live in Bath and want to know what a side return extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Bath (BA1 and BA2) as part of our Somerset work. In Bath we check the boundary line and the neighbour's gutter before drawing a side return, because a few centimetres decide whether the wall goes on or beside the boundary.
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 Bath?
A side return extension in Bath 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 Bath?
Planning for a side return extension in Bath follows the English householder rules.
In England the side part of a side return or wraparound must meet the side-extension rules (one storey, under 4 metres high, no more than half the width of the original house), and those rights do not apply on designated land. Because a wraparound combines a side and a rear extension, many need householder planning permission.
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. 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 Bath like to extend?
Stone-built and rendered houses are common around Bath, 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 Bath 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.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
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 Bath
Neighbouring places we cover include Keynsham (6.4 miles) and Neston (7.4 miles).
- Side return extension in Keynsham
- Side return extension in Neston
- Side return extension in Trowbridge
- Side return extension in Midsomer Norton
- Side return extension in Kingswood
Other work in Bath:
FAQ
Side return extension questions in Bath
What postcode areas do you cover around Bath?
Including BA1 and BA2, and the surrounding Somerset area.
Can you match the brick or stone on my Bath house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
How much space does a side return add?
Typically 8 to 18 square metres, enough to turn a galley kitchen into a kitchen-diner with an island.
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.
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.
Is the site visit in Bath free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.