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 Ayrshire?
In Ayrshire, 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 Ayrshire 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 |
What moves the price most:
- Access for materials on terraced streets
- Drainage changes
- Steelwork and propping of the existing house
- Total footprint and the amount of glazing
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Do you need planning permission for a wraparound extension in Ayrshire?
Approvals for a wraparound extension in Ayrshire follow the rules for Scotland. In Scotland a wraparound extension normally needs planning permission and a building warrant.
Scotland has no Party Wall Act. Work on shared walls is governed by your title deeds, the Tenements (Scotland) Act 2004 for flats, and common law, so we agree arrangements with neighbours in writing before work starts.
We check this for your address before design work starts, so there are no surprises later.
What we handle
Handled as part of most wraparound extensions:
- Building control completion
- Written agreement with neighbours on shared walls
- Underfloor heating option, electrics and plastering
- Structural engineer’s design for steels and supports
- Walls, roof and glazing
- Design and planning application
How long does it take?
Expect 12 to 18 weeks on site. Allow time beforehand for drawings and approvals, usually 3 to 4 months.
Building in Ayrshire
Scotland’s housing ranges from sandstone tenements and villas to post-war and modern estates, and the building warrant system shapes how projects are planned.
Towns we cover in Ayrshire include Kilmarnock, Ayr, Irvine, Kilwinning, Troon and Prestwick.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about wraparound extensions in Ayrshire
Who approves a wraparound extension in Ayrshire?
Planning matters in Ayrshire go to the council covering your address, and the work needs a building warrant. We prepare and submit the applications for you.
How much does a wraparound extension cost in Ayrshire?
In Ayrshire, 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 Ayrshire?
In Scotland a wraparound extension normally needs planning permission and a building warrant.
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.