House extensions in Dumfries and Galloway
From a small utility to a two-storey addition, we take on house extensions throughout Dumfries and Galloway, starting with a free visit and a planning check.
- Towns listed3
- Price regionScotland (×0.98)
- Planning rulesScotland
- Postcode districts15
Towns we cover in Dumfries and Galloway
Towns we cover here include Dumfries, Annan, Stranraer.
Which extension suits a Dumfries and Galloway home?
Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.
For many houses here, double-storey extensions, bungalow extensions or single-storey rear extensions gives the most useful space for the budget.
Approvals for an extension in Dumfries and Galloway
In Scotland, householder permitted development rules (Class 1A for single-storey ground-floor extensions and Class 1B for extensions of more than one storey) allow some smaller extensions without a planning application, within limits on depth, height and distance from the boundary. Conservation areas and listed buildings are more restricted.
In a conservation area or national scenic area the householder permitted development rights are more limited, listed homes need listed building consent, and if rights have been removed by a condition or direction, any extension needs an application.
In Scotland a building warrant from the council is needed before work starts on almost any extension, and a completion certificate is issued when the work is accepted. Building standards are set in the Scottish technical handbooks.
Dumfries and Galloway extension prices at a glance
Use these Dumfries and Galloway guide prices to sense-check a budget; the guide-price tool narrows them to your own size, and the site visit turns them into a written figure.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Single-storey rear extensions | 20 m² | £40,000 – £51,000 |
| Side return extensions | 11 m² | £25,500 – £32,500 |
| Double-storey extensions | 32 m² | £56,000 – £74,000 |
| Conservatory replacement extensions | 14 m² | £29,000 – £38,000 |
| Extensions over a garage | 12 m² | £24,500 – £32,000 |
| Wraparound extensions | 25 m² | £56,000 – £71,500 |
All extension types we build in Dumfries and Galloway
- Flat roof extensions · from £20,500
- Side extensions · from £21,500
- Extensions over a garage · from £23,500
- Porch extensions · from £3,900
- Single-storey rear extensions · from £20,500
- Extension plans and drawings · from £1,150
- Conservatory replacement extensions · from £19,500
- Double-storey extensions · from £37,000
- Bungalow extensions · from £25,500
- Timber frame extensions · from £20,500
- Glass box extensions · from £29,000
- Planning permission for extensions · from £300
- Wraparound extensions · from £35,000
- Building regulations for extensions · from £850
- Annexe extensions · from £53,500
- Kitchen extensions · from £26,000
- Bedroom extensions · from £25,000
- Side return extensions · from £17,500
- Pitched roof extensions · from £21,500
- Home office extensions · from £15,500
- Orangery extensions · from £29,000
- Utility and boot room extensions · from £13,500
Neighbouring areas
Questions about extensions in Dumfries and Galloway
How much does an extension cost in Dumfries and Galloway?
With our Scotland factor (×0.98), a standard-spec 20 m² single-storey extension is a guide £40,000 to £51,000 including VAT. Prices for every type are linked on this page.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, and in Scotland we apply for the building warrant before work starts.
Will my neighbours need to be told?
If you apply for planning permission the council notifies neighbours, and we agree access with them in writing for work near a shared boundary.
Do you cover all of Dumfries and Galloway?
Yes, across the whole of Dumfries and Galloway. Site visits are free and there is no obligation.
Book a free site visit in Dumfries and Galloway
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.