Kilwinning, Ayrshire
Side return extension in Kilwinning
Side return extension in Kilwinning: infilling the narrow passage beside a Victorian or Edwardian back addition. We measure the house, show you what the rules allow, price it in writing and build it.
Kilwinning and its postcode districts KA13 are part of our Ayrshire coverage. Side returns suit the Victorian and Edwardian terraces found across parts of Ayrshire, where the kitchen sits in a narrow back addition.
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 side return extension cost in Kilwinning?
In Kilwinning, our guide for a side return extension is £2,180–£3,610 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 |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £26,000–£43,500 |
| 2.5 m wide × 7 m deep (17.5 m²) | £38,000–£63,000 |
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 side return extension in Kilwinning?
Whether your side return extension in Kilwinning needs a planning application depends on its size, your house and any local restrictions.
In Scotland side extensions are more restricted than rear ones under householder permitted development, and wraparounds generally need planning permission. A building warrant is required before work starts.
Scotland has no Party Wall Act. Work to shared walls is governed by property law and the title deeds, so we agree access and protection with neighbours in writing before work begins.
Classes 1A and 1B do not apply in conservation areas, and listed buildings need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Kilwinning like to extend?
Kilwinning 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 side return extension in Kilwinning comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Paperwork handled
Planning or permitted development, the building warrant, structural design and neighbour agreements are all handled by us.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Side return extensions near Kilwinning
From Kilwinning, the nearest places we also cover are Irvine (3.1 miles) and Saltcoats (3.3 miles).
- Side return extension in Irvine
- Side return extension in Saltcoats
- Side return extension in Ardrossan
- Side return extension in Troon
- Side return extension in Kilmarnock
Other work in Kilwinning:
FAQ
Side return extension questions in Kilwinning
How long does a rear extension take to build in Kilwinning?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
How much does a side return extension cost in Kilwinning?
As a guide, £2,180–£3,610 per square metre including VAT for a standard specification. For example, 2 m wide × 6 m deep (12 m²): about £26,000–£43,500 at that rate. Your written price follows the survey.
Where does the drainage go?
Side passages often carry the soil and rainwater pipes. We survey them first and reroute them under the new floor where needed.
Do I need planning permission for a rear extension in Kilwinning?
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.
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.
Is the site visit in Kilwinning free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.