Kilwinning, Ayrshire
Glazed rear extension in Kilwinning
Thinking about a glazed rear extension in Kilwinning? Full-height glass, slim frames and big rooflights for the most open rear room. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
We cover Kilwinning (KA13) as part of our Ayrshire work. A wide sliding door with one long rooflight, rather than a fully glazed roof, keeps a glass-led extension usable in summer.
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 Kilwinning?
Guide prices for a glazed rear extension in Kilwinning start from our Scotland rate of £2,660–£4,560 per square metre, including VAT. Prices in Scotland sit a little below our West Midlands baseline; building warrant fees and drawings are budgeted separately.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £32,000–£54,500 |
| 4 m wide × 6 m deep (24 m²) | £64,000–£109,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a glazed rear extension in Kilwinning?
The planning route for a glazed rear extension in Kilwinning is set by Scotland's householder rules and your council.
In Scotland a single-storey rear extension can be permitted development under Class 1A: eaves no higher than 3 metres and an overall height of 4 metres, and where any part is within 1 metre of a boundary it can project no more than 3 metres on a terraced house or 4 metres on other houses. The rights do not apply in conservation areas, and a building warrant is still needed before work starts.
Insulation and glazing follow Section 6 of the Scottish Technical Handbook; the building warrant drawings show how the extension meets it.
Classes 1A and 1B do not apply in conservation areas, and listed buildings 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 Kilwinning like to extend?
Post-war semis and terraces are common around Kilwinning, and many have room for a single-storey rear extension within Class 1A limits.
How a glazed rear extension in Kilwinning 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 or planning application, then building warrant drawings and structural calculations, plus a written agreement with neighbours for any shared-wall work.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the accepted completion certificate.
Glazed rear extensions near Kilwinning
Close by, we work in Irvine, about 3.1 miles away, and Saltcoats, about 3.3 miles away.
- Glazed rear extension in Irvine
- Glazed rear extension in Saltcoats
- Glazed rear extension in Ardrossan
- Glazed rear extension in Troon
- Glazed rear extension in Kilmarnock
Other work in Kilwinning:
FAQ
Glazed rear extension questions in Kilwinning
How much does a glazed rear extension cost in Kilwinning?
As a guide, £2,660–£4,560 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £32,000–£54,500 at that rate. Your written price follows the survey.
What postcode areas do you cover around Kilwinning?
Including KA13, and the surrounding Ayrshire area.
Is a glass box a conservatory?
No. It is built to Building Regulations as part of the house, with insulated floor and roof, so it is usable all year.
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.
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 long does a rear extension take to build in Kilwinning?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.