Cumbernauld, Lanarkshire
Side return extension in Cumbernauld
We plan and build side return extensions for homeowners in Cumbernauld. Infilling the narrow passage beside a Victorian or Edwardian back addition. Start with a free site visit, then a written price once the design is agreed.
Cumbernauld sits in Lanarkshire, with postcode districts including G67. In Cumbernauld we check the boundary line and the neighbour's gutter before drawing a side return, because a few centimetres decide whether the wall goes on or beside the boundary.
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 Cumbernauld?
Guide prices for a side return extension in Cumbernauld start from our Scotland rate of £2,180–£3,610 per square metre, including VAT. 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 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a side return extension in Cumbernauld?
Planning for a side return extension in Cumbernauld follows the Scottish householder rules.
Scottish householder rights treat the side part of a wraparound or side infill more strictly than a plain rear extension, so most need planning permission, and all need a building warrant.
There is no Party Wall Act in Scotland; neighbour matters are handled through the title deeds, common law and written agreement before work starts.
Classes 1A and 1B do not apply in conservation areas, and listed buildings need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development or a planning application, plus the building warrant.
What are homes in Cumbernauld like to extend?
Post-war semis and terraces are common around Cumbernauld, and many have room for a single-storey rear extension within Class 1A limits.
How a side return extension in Cumbernauld 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.
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.
Side return extensions near Cumbernauld
Neighbouring places we cover include Airdrie (5.6 miles) and Coatbridge (6.0 miles).
- Side return extension in Airdrie
- Side return extension in Coatbridge
- Side return extension in Kirkintilloch
- Side return extension in Viewpark
- Side return extension in Stenhousemuir
Other work in Cumbernauld:
FAQ
Side return extension questions in Cumbernauld
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
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.
Can I combine a side return with a rear extension?
Yes; that is a wraparound extension, and it gives the biggest open-plan room a terrace can have.
Do I need planning permission for a rear extension in Cumbernauld?
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.
How long does a rear extension take to build in Cumbernauld?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do you handle building control in Cumbernauld?
Yes. We apply for the building warrant before work starts and submit the completion certificate at the end.