Wraparound extensions in Cumbernauld: design, approvals and build
Planning a wraparound extension in Cumbernauld? We survey the house, work out the planning route, draw the design and build it, so you deal with one team from the first visit to the completion certificate.
- Guide price in CumbernauldFrom £35,000 inc VAT
- PlanningScottish householder rules; building warrant needed
- Build time14–20 weeks on site
- Postcode districtsG65, G67, G68

Local to Cumbernauld
Our survey diary covers Cumbernauld, including G65, G67, G68. Neighbouring towns we cover include Airdrie (6 miles), Coatbridge (6 miles), Bellshill (9 miles), Motherwell (11 miles).
Scotland's housing includes sandstone villas, terraces and tenements in the cities and plenty of post-war and modern houses and bungalows elsewhere. A building warrant is needed before work starts.
Will the council need to approve it?
In Scotland, householder permitted development rules (Class 1A for single-storey ground-floor extensions and Class 1B for extensions of more than one storey) allow some smaller extensions without a planning application, within limits on depth, height and distance from the boundary. Conservation areas and listed buildings are more restricted.
The planning position for a specific Cumbernauld address depends on its history and any designations, which is why we check it at the first visit.
Scotland has no Party Wall Act. Where work affects a shared wall or a neighbour's land, we agree access, protection and making good with your neighbour in writing before work starts.
In Scotland a building warrant from the council is needed before work starts on almost any extension, and a completion certificate is issued when the work is accepted. Building standards are set in the Scottish technical handbooks.
Applications are decided by your council as planning authority.
When a wraparound extension makes sense
- Families who want kitchen, dining and living in one space
- Semi-detached houses with a side passage
- Terraced houses that want the largest ground floor possible
How much does a wraparound extension cost in Cumbernauld?
Labour and material costs vary across the UK, so for Cumbernauld we use our Scotland factor (×0.98). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Cumbernauld: £1,960 to £3,630 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| Compact L-shape 18 m² | £35,000 – £42,500 | £40,500 – £51,500 | £51,000 – £65,500 |
| Medium L-shape 25 m² | £49,000 – £59,000 | £56,000 – £71,500 | £71,000 – £91,000 |
| Large L-shape 32 m² | £62,500 – £75,500 | £72,000 – £91,000 | £90,500 – £116,500 |
Want a range for your exact size? The guide-price tool takes about a minute.
Our process, step by step
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Wraparound extension questions answered
Who do I contract with for a wraparound extension in Cumbernauld?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Do you cover all of Cumbernauld?
Yes. We cover Cumbernauld and the surrounding parts of Lanarkshire. Site visits are free and there is no obligation.
How long does a wraparound extension take to build in Cumbernauld?
On site, typically 14 to 20 weeks once approvals are in place. Before that, allow 8–16 weeks design and approvals.
How much does a wraparound extension cost?
Our guide range is about £1,960 to £3,630 per m² including VAT. A 25 m² standard-spec wraparound typically lands around £56,000 to £71,500 in Cumbernauld before design and council fees.
Is a wraparound better than a side return alone?
It adds far more space, but costs more and needs planning permission more often. Our comparison guide sets the two side by side.
Book a free site visit in Cumbernauld
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.