Bedroom extensions for homes in Grangemouth
If you live in Grangemouth and want more space without moving, a bedroom extension is one of the most practical ways to get it. We handle the drawings, approvals and the build.
- Guide price in GrangemouthFrom £25,000 inc VAT
- PlanningUsually planning permission; building warrant needed
- Build time14–22 weeks on site
- Postcode districtsFK2, FK3
How much does a bedroom extension cost in Grangemouth?
Labour and material costs vary across the UK, so for Grangemouth we use our Scotland factor (×0.98). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Grangemouth: £1,570 to £3,140 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| One bedroom 12 m² | £25,000 – £31,500 | £25,000 – £33,000 | £28,000 – £38,000 |
| Bedroom and en-suite 18 m² | £28,000 – £34,500 | £33,500 – £43,500 | £42,000 – £56,500 |
| Two rooms 30 m² | £47,000 – £57,500 | £55,500 – £72,500 | £70,500 – £94,500 |
For a figure based on your own dimensions, use our guide-price tool.
What is included
- Planning drawings and application
- Heating extended to the new rooms
- Structure, roof, insulation and finish
- En-suite drainage and ventilation design
- Layout options: two-storey, over-garage or ground floor
New bedrooms on an upper floor need an escape window or a protected route to the outside under the building regulations. We design the window sizes and stair route to meet that from the outset.
Do I need planning permission in Grangemouth?
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.
Homes in conservation areas, national scenic areas and listed buildings have tighter rules, so we always check the property's status and planning history before design starts.
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.
Scotland has no Party Wall Act. Where work affects a shared wall or a neighbour's land, we agree access, protection and making good with your neighbour in writing before work starts.
Applications are decided by your council as planning authority.
Extensions in and around Grangemouth
Postcode districts we cover around Grangemouth include FK2, FK3. Nearby, we also take on projects in Falkirk (3 miles), Alloa (8 miles), Stirling (11 miles).
Just over the Edinburgh and the Lothians border, Bathgate is about 8 miles away. Scotland's housing includes sandstone villas, terraces and tenements in the cities and plenty of post-war and modern houses and bungalows elsewhere. A building warrant is needed before work starts.
Our process, step by step
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Bedroom extension questions answered
How long does a bedroom extension take to build in Grangemouth?
On site, typically 14 to 22 weeks once approvals are in place. Before that, allow 8–14 weeks design and approvals.
Will my neighbours in Grangemouth be involved?
If a planning application is needed, the council notifies neighbours. Where work is close to a shared boundary, we agree access and protection with them in writing.
Do you cover all of Grangemouth?
Yes. We cover Grangemouth and the surrounding parts of Forth Valley. Site visits are free and there is no obligation.
Can I add a ground-floor bedroom for a relative?
Yes. A ground-floor bedroom with an accessible shower room is a common request. If it will be lived in as a self-contained home, planning treats it differently, so tell us how it will be used.
Will a new bedroom need planning permission?
Upstairs additions usually do. Ground-floor rooms may fall within permitted development, depending on size and position.
Book a free site visit in Grangemouth
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.