Pitched roof extensions across Forth Valley
A pitched roof extension in Forth Valley starts with the right design and the right approval route. We take care of both, then build it with our own project management.
- Guide priceFrom £21,500 inc VAT
- PlanningScottish householder rules; building warrant needed
- Towns covered4
- Site visitFree, no obligation
Towns in Forth Valley
Pitched roof extension prices in Forth Valley
These guide figures apply our Scotland adjustment (×0.98) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.
Typical rates in Forth Valley: £1,810 to £3,430 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 4 m 12 m² | £21,500 – £25,500 | £25,000 – £32,500 | £32,000 – £41,500 |
| 4 m × 5 m 20 m² | £36,000 – £42,500 | £42,000 – £54,000 | £53,500 – £69,000 |
| 5 m × 6 m 30 m² | £54,000 – £63,500 | £63,000 – £81,000 | £80,500 – £103,000 |
Want a range for your exact size? The guide-price tool takes about a minute.
What is included
- Insulation to current building regulations
- Lead or proprietary flashings to the main wall
- Roof design matched to the existing pitch and tiles
- Roof windows positioned for light and ventilation
- Vaulted ceilings or flat ceilings with storage above
Matching tiles is harder than it sounds. We source reclaimed or closest-match tiles where the originals are no longer made and agree samples with you before ordering.
Planning rules that apply in Forth Valley
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.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
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.
Building close to a public sewer needs the agreement of Scottish Water, which we check during design.
Applications are decided by your council as planning authority.
Extensions in and around Forth Valley
Towns we cover in Forth Valley include Stirling, Falkirk, Alloa, Grangemouth. Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.
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
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Your questions about a pitched roof extension in Forth Valley
Do you cover all of Forth Valley?
Yes, across the whole of Forth Valley. Site visits are free and there is no obligation.
How long does a pitched roof extension take to build in Forth Valley?
On site, typically 10 to 16 weeks once approvals are in place. Before that, allow 6–12 weeks design and approvals.
Do I need building regulations approval in Forth Valley?
Yes. Almost every extension needs it, whatever the planning route. In Scotland that means a building warrant before work starts.
How much does a pitched roof extension cost?
Our guide range is about £1,810 to £3,430 per m² including VAT, a little more than a flat roof because of the roof structure and tiles.
Is a pitched roof better than a flat roof?
Neither is better in all cases. Pitched roofs blend with traditional houses and shed water quickly; flat roofs give more headroom and suit modern designs and lanterns.
Book a free site visit in Forth Valley
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.