Milngavie, Glasgow and the Clyde
Semi-detached rear extension in Milngavie
We plan and build rear extensions for semi-detached houses for homeowners in Milngavie. Single or two-storey extensions for semi-detached houses, with side access and one party wall. Start with a free site visit, then a written price once the design is agreed.
Milngavie and its postcode districts G61 and G62 are part of our Glasgow and the Clyde coverage. Semi-detached houses are common across Glasgow and the Clyde, and their side access makes rear extensions quicker to build.
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 semi-detached rear extension cost in Milngavie?
Guide prices for a semi-detached rear extension in Milngavie start from our Scotland rate of £1,800–£2,940 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 |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £21,500–£35,500 |
| 4 m wide × 5 m deep (20 m²) | £36,000–£59,000 |
| 4 m wide × 6 m deep (24 m²) | £43,500–£70,500 |
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 semi-detached rear extension in Milngavie?
Whether your semi-detached rear extension in Milngavie needs a planning application depends on its size, your house and any local restrictions.
Scottish householder permitted development (Class 1A) covers many single-storey rear extensions, with a 3 metre eaves limit, a 4 metre height limit and, within 1 metre of a boundary, a depth limit of 3 metres for terraced houses or 4 metres for others. Conservation areas are excluded, and you need a building warrant whatever the planning position.
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.
Scotland has no larger-extension prior approval route; extensions beyond permitted development need a planning application.
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 Milngavie like to extend?
Milngavie 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 semi-detached rear extension in Milngavie 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.
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.
Semi-detached rear extensions near Milngavie
We also build rear extensions for semi-detached houses in nearby Bearsden (1.8 miles) and Clydebank (4.2 miles).
- Semi-detached rear extension in Bearsden
- Semi-detached rear extension in Clydebank
- Semi-detached rear extension in Bishopbriggs
- Semi-detached rear extension in Renfrew
- Semi-detached rear extension in Erskine
Other work in Milngavie:
FAQ
Semi-detached rear extension questions in Milngavie
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.
What postcode areas do you cover around Milngavie?
Including G61 and G62, and the surrounding Glasgow and the Clyde area.
What if my neighbour has already extended?
That can make a matching depth easier to justify. We measure theirs at the survey.
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.
Do you handle building control in Milngavie?
Yes. We apply for the building warrant before work starts and submit the completion certificate at the end.
Is the site visit in Milngavie free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.