Royal Wootton Bassett, Wiltshire
Glazed rear extension in Royal Wootton Bassett
We plan and build glazed and glass-box rear extensions for homeowners in Royal Wootton Bassett. Full-height glass, slim frames and big rooflights for the most open rear room. Start with a free site visit, then a written price once the design is agreed.
Royal Wootton Bassett is covered from our Wiltshire round, including SN4 and SN5. Glass-led rear extensions in Royal Wootton Bassett are planned around which way the garden faces, because that decides the glass specification.
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 glazed rear extension cost in Royal Wootton Bassett?
A glazed rear extension in Royal Wootton Bassett is priced at £2,910–£4,990 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 |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £35,000–£60,000 |
| 4 m wide × 6 m deep (24 m²) | £70,000–£120,000 |
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 glazed rear extension in Royal Wootton Bassett?
Planning for a glazed rear extension in Royal Wootton Bassett follows the English householder rules.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is within 2 metres of a boundary.
New fabric must meet Approved Document L (2021 edition incorporating 2023 amendments): walls 0.18, roof 0.15 and floor 0.18 W/m²K, windows 1.4 W/m²K or Band B. Under the simple route, new windows, doors and rooflights should not exceed 25% of the extension floor area plus any openings removed; more glass is possible with a whole-house calculation.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Royal Wootton Bassett like to extend?
Stone-built and rendered houses are common around Royal Wootton Bassett, 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 glazed rear extension in Royal Wootton Bassett comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
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.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Glazed rear extensions near Royal Wootton Bassett
We also build glazed and glass-box rear extensions in nearby Swindon (5.4 miles) and Calne (8.3 miles).
- Glazed rear extension in Swindon
- Glazed rear extension in Calne
- Glazed rear extension in Chippenham
- Glazed rear extension in Cirencester
- Glazed rear extension in Devizes
Other work in Royal Wootton Bassett:
FAQ
Glazed rear extension questions in Royal Wootton Bassett
What postcode areas do you cover around Royal Wootton Bassett?
Including SN4 and SN5, and the surrounding Wiltshire area.
How long does a rear extension take to build in Royal Wootton Bassett?
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 I have a level threshold?
Yes, with a drainage channel outside the doors and the slab set to the patio level.
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.
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.
How much does a glazed rear extension cost in Royal Wootton Bassett?
As a guide, £2,910–£4,990 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £35,000–£60,000 at that rate. Your written price follows the survey.