Helensburgh, Glasgow and the Clyde
Wraparound extension in Helensburgh
An L-shaped extension that fills the side return and runs across the back. We design, get the approvals for and build wraparound extensions in Helensburgh and the surrounding area, with one contract from the first survey to building control sign-off.
Helensburgh sits in Glasgow and the Clyde, with postcode districts including G84. Wraparounds are the natural next step for the end-of-terrace and Victorian houses in Glasgow and the Clyde where a side return alone would leave the room too narrow.
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 wraparound extension cost in Helensburgh?
In Helensburgh, our guide for a wraparound extension is £2,090–£3,420 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 |
|---|---|
| L-shaped, about 22 m² of new floor | £46,000–£75,000 |
| L-shaped, about 30 m² of new floor | £62,500–£102,500 |
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 wraparound extension in Helensburgh?
Whether your wraparound extension in Helensburgh 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. 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 Helensburgh like to extend?
Helensburgh 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 wraparound extension in Helensburgh 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Approvals
Permitted development check or planning application, then building warrant drawings and structural calculations, plus a written agreement with neighbours for any shared-wall work.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the accepted completion certificate.
Wraparound extensions near Helensburgh
From Helensburgh, the nearest places we also cover are Greenock (4.2 miles) and Gourock (4.7 miles).
- Wraparound extension in Greenock
- Wraparound extension in Gourock
- Wraparound extension in Port Glasgow
- Wraparound extension in Vale of Leven
- Wraparound extension in Dumbarton
Other work in Helensburgh:
FAQ
Wraparound extension questions in Helensburgh
Do you handle building control in Helensburgh?
Yes. We apply for the building warrant before work starts and submit the completion certificate at the end.
How long does a rear extension take to build in Helensburgh?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Does a wraparound need planning permission?
Often yes, because the side and rear parts are judged together. Some fit within permitted development; we check before drawing.
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.
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.
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.