Prestwick, Ayrshire
Two-storey rear extension in Prestwick
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. If you live in Prestwick and want to know what a two-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Prestwick sits in Ayrshire, with postcode districts including KA7, KA8 and KA9. In Ayrshire we check the neighbours' rear windows first, because the upper floor is where most two-storey schemes win or lose planning.
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 two-storey rear extension cost in Prestwick?
For Prestwick we work from the Scotland rate: £1,710–£2,560 per square metre of new floor, including VAT, 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 × 5 m footprint, two floors (30 m²) | £51,500–£77,000 |
| 4 m × 6 m footprint, two floors (48 m²) | £82,000–£123,000 |
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 two-storey rear extension in Prestwick?
Planning for a two-storey rear extension in Prestwick follows the Scottish householder rules.
Scottish Class 1B rights for extensions of more than one storey need a 10 metre gap to every boundary, which few gardens have. Expect a planning application as well as a building warrant for a double-storey rear extension.
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 Prestwick like to extend?
Prestwick has sandstone villas and terraces, post-war semis and four-in-a-block flats. Flats need planning permission for an extension, and every project needs a building warrant before work starts.
How a two-storey rear extension in Prestwick 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.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the accepted completion certificate and any guarantees from suppliers.
Two-storey rear extensions near Prestwick
Neighbouring places we cover include Ayr (1.6 miles) and Troon (4.5 miles).
- Two-storey rear extension in Ayr
- Two-storey rear extension in Troon
- Two-storey rear extension in Irvine
- Two-storey rear extension in Kilmarnock
- Two-storey rear extension in Kilwinning
Other work in Prestwick:
FAQ
Two-storey rear extension questions in Prestwick
Is the site visit in Prestwick free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
What is the 45-degree rule?
Many councils check that a two-storey extension does not cross a 45-degree line drawn from the nearest habitable window of the neighbouring house. We test it at the first drawing.
How long does a rear extension take to build in Prestwick?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.
Do I need a party wall agreement?
Scotland has no Party Wall Act; we agree access and protection with your neighbour in writing instead.