Dumfries, Dumfries and Galloway
Single-storey rear extension in Dumfries
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. If you live in Dumfries and want to know what a single-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Dumfries and its postcode districts DG1 and DG2 are part of our Dumfries and Galloway coverage. On sandstone villas, semis and four-in-a-block flats like those around Dumfries, a single-storey rear extension is usually the simplest way to fix a small back kitchen without touching the bedrooms.
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 single-storey rear extension cost in Dumfries?
A single-storey rear extension in Dumfries is priced at £1,800–£2,940 per square metre including VAT as a guide, before kitchen fit-out and fees. 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 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a single-storey rear extension in Dumfries?
Here is how the rules in Scotland apply to a single-storey rear extension in Dumfries.
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.
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. 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 Dumfries like to extend?
Dumfries 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 single-storey rear extension in Dumfries 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.
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.
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.
Single-storey rear extensions near Dumfries
Neighbouring places we cover include Locharbriggs (2.6 miles) and Annan (15.1 miles).
- Single-storey rear extension in Locharbriggs
- Single-storey rear extension in Annan
- Single-storey rear extension in Carlisle
- Single-storey rear extension in Workington
- Single-storey rear extension in Whitehaven
Other work in Dumfries:
FAQ
Single-storey rear extension questions in Dumfries
Do I need planning permission for a rear extension in Dumfries?
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 much does a single-storey rear extension cost in Dumfries?
As a guide, £1,800–£2,940 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £21,500–£35,500 at that rate. Your written price follows the survey.
Can I stay in the house during the build?
Usually yes. The noisiest, dustiest stage, removing the back wall, is kept to the final weeks and screened off. Most families set up a temporary kitchen elsewhere in the house.
Can you match the brick or stone on my Dumfries house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Is the site visit in Dumfries free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Do you handle building control in Dumfries?
Yes. We apply for the building warrant before work starts and submit the completion certificate at the end.