Cumbernauld, Lanarkshire
Glazed rear extension in Cumbernauld
Full-height glass, slim frames and big rooflights for the most open rear room. If you live in Cumbernauld and want to know what a glazed rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Cumbernauld and its postcode districts G67 are part of our Lanarkshire coverage. 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 Cumbernauld?
In Cumbernauld, our guide for a glazed rear extension is £2,660–£4,560 per square metre including VAT for a standard specification. 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 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a glazed rear extension in Cumbernauld?
Here is how the rules in Scotland apply to a glazed rear extension in Cumbernauld.
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. At the first visit we measure what is there now and tell you which route fits: permitted development or a planning application, plus the building warrant.
What are homes in Cumbernauld like to extend?
Post-war semis and terraces are common around Cumbernauld, and many have room for a single-storey rear extension within Class 1A limits.
How a glazed rear extension in Cumbernauld 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.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for the building warrant.
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 Cumbernauld
From Cumbernauld, the nearest places we also cover are Airdrie (5.6 miles) and Coatbridge (6.0 miles).
- Glazed rear extension in Airdrie
- Glazed rear extension in Coatbridge
- Glazed rear extension in Kirkintilloch
- Glazed rear extension in Viewpark
- Glazed rear extension in Stenhousemuir
Other work in Cumbernauld:
FAQ
Glazed rear extension questions in Cumbernauld
How long does a rear extension take to build in Cumbernauld?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
What postcode areas do you cover around Cumbernauld?
Including G67, and the surrounding Lanarkshire area.
Does glass need planning permission?
The same rules apply as any rear extension; glass does not change the depth or height limits.
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.
Do I need planning permission for a rear extension in Cumbernauld?
Many single-storey rear extensions are permitted development under Class 1A, but not in conservation areas; you always need a building warrant before work starts.
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.