Falkirk, Forth Valley
Single-storey rear extension in Falkirk
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. If you live in Falkirk 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.
Falkirk sits in Forth Valley, with postcode districts including FK1, FK2, FK3 and FK5. A single-storey rear extension in Falkirk is mostly built from the garden side, so the house stays usable for most of the job.
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 Falkirk?
In Falkirk, our guide for a single-storey rear extension is £1,800–£2,940 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 |
|---|---|
| 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 Falkirk?
Here is how the rules in Scotland apply to a single-storey rear extension in Falkirk.
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. 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 Falkirk like to extend?
Post-war semis and terraces are common around Falkirk, and many have room for a single-storey rear extension within Class 1A limits.
How a single-storey rear extension in Falkirk 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
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.
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.
Single-storey rear extensions near Falkirk
Neighbouring places we cover include Stenhousemuir (2.0 miles) and Grangemouth (2.5 miles).
- Single-storey rear extension in Stenhousemuir
- Single-storey rear extension in Grangemouth
- Single-storey rear extension in Bo'ness
- Single-storey rear extension in Linlithgow
- Single-storey rear extension in Alloa
Other work in Falkirk:
FAQ
Single-storey rear extension questions in Falkirk
Do you handle building control in Falkirk?
Yes. We apply for the building warrant before work starts and submit the completion certificate at the end.
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.
Is a flat roof or a pitched roof better?
A warm flat roof keeps the extension low under first-floor windows and suits a roof lantern; a pitched or lean-to roof gives a vaulted ceiling. Both last for decades when built properly.
How much does a single-storey rear extension cost in Falkirk?
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.
Do I need planning permission for a rear extension in Falkirk?
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.
Is the site visit in Falkirk free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.