What is a wraparound extension?
A wraparound extension combines a side return and a rear extension into one L-shaped addition. It gives the largest possible ground floor, often creating an open-plan kitchen, dining and living space across the whole width of the house.
How much does a wraparound extension cost in Cumbernauld?
In Cumbernauld, a wraparound extension typically costs £2,150–£3,100 per m² of floor area, including VAT at 20% (standard rate). For a typical 28 m² project that is roughly £60,000–£87,000. Prices in Scotland sit near the national average for this kind of work, and the range for Cumbernauld reflects that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (20 m²) | £43,000–£62,000 |
| Typical project (28 m²) | £60,000–£87,000 |
| Larger project (39 m²) | £84,000–£121,000 |
| Rate per m² | £2,150–£3,100 |
Your quote will depend mainly on:
- Drainage changes
- Access for materials on terraced streets
- Total footprint and the amount of glazing
- Kitchen and flooring specification
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a wraparound extension in Cumbernauld?
The approval route for Cumbernauld is set by planning law in Scotland. In Scotland a wraparound extension normally needs planning permission and a building warrant.
In Scotland a building warrant is needed before work starts on most extensions, loft conversions and conversions. It is issued by the council’s building standards service. When the work is finished, a completion certificate is submitted and accepted by the council after inspection.
We check this for your address before design work starts, so there are no surprises later.
What we handle
On a typical wraparound extension we handle:
- Design and planning application
- Underfloor heating option, electrics and plastering
- Structural engineer’s design for steels and supports
- Walls, roof and glazing
- Removal of internal and external walls
- Foundations and drainage
How long does it take?
Expect 12 to 18 weeks on site. Design and approvals come first and typically take 3 to 4 months, depending on the approval route.
Building in Cumbernauld
In Scotland, bungalows and one-and-a-half-storey homes are common, so dormer conversions are a popular way to add bedrooms.
From G67 outwards, we take on projects throughout Cumbernauld and the surrounding parts of Lanarkshire.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about wraparound extensions in Cumbernauld
How much does a wraparound extension cost in Cumbernauld?
In Cumbernauld, a wraparound extension typically costs £2,150–£3,100 per m² of floor area, including VAT at 20% (standard rate). A typical 28 m² project comes to roughly £60,000–£87,000. Your fixed price depends on the survey and drawings.
What about the old back addition?
The side wall of the back addition is usually removed and replaced with a steel beam, so the old kitchen joins the new space.
Do I need planning permission for a wraparound extension in Cumbernauld?
In Scotland a wraparound extension normally needs planning permission and a building warrant.
How long does a wraparound extension take in Cumbernauld?
Typically 12 to 18 weeks on site. Design and approvals beforehand usually take 3 to 4 months.
Is a wraparound worth it?
It gives the biggest ground-floor space without going upwards. Whether it adds value depends on your street and house, so we suggest checking local sale prices before committing.
Can we keep a separate living room?
Yes. Many clients keep the front room separate and open up only the back of the house.