Orangery extensions for homes in Dunbartonshire
A orangery extension in Dunbartonshire 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 £29,000 inc VAT
- PlanningScottish householder rules; building warrant needed
- Towns covered6
- Site visitFree, no obligation

Towns in Dunbartonshire
Covering Dunbartonshire
Towns we cover in Dunbartonshire include Bearsden, Clydebank, Vale of Leven, Bishopbriggs, Dumbarton, Kirkintilloch. Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.
Is an orangery extension right for your house?
- Period and detached houses with a garden view
- Homeowners replacing an older conservatory
- Those who want daylight without overheating
The lantern-to-roof ratio sets the character. A wider solid perimeter gives a calmer, more room-like space and hides downlights and speakers; a bigger lantern feels brighter but needs more care against summer heat.
Planning rules that apply in Dunbartonshire
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.
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.
Orangery extension prices in Dunbartonshire
For Dunbartonshire we adjust our national guide rates by ×0.98, the factor we use for Scotland. Figures include VAT; your written quote after the survey replaces them.
Typical rates in Dunbartonshire: £2,350 to £4,410 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 4 m 12 m² | £29,000 – £36,000 | £32,500 – £41,500 | £39,500 – £53,000 |
| 4 m × 4 m 16 m² | £37,500 – £45,500 | £43,500 – £55,000 | £53,000 – £71,000 |
| 4 m × 6 m 24 m² | £56,000 – £68,500 | £65,500 – £82,500 | £79,500 – £106,000 |
For a figure based on your own dimensions, use our guide-price tool.
What happens next
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
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Orangery extension questions answered
Will my neighbours in Dunbartonshire 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.
Who do I contract with for an orangery extension in Dunbartonshire?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Do I need building regulations approval in Dunbartonshire?
Yes. Almost every extension needs it, whatever the planning route. In Scotland that means a building warrant before work starts.
Will an orangery be too hot in summer?
Not if it is designed with solar-control glass, a solid perimeter and ventilation. We size the lantern and opening vents with that in mind.
How much does an orangery cost?
Our guide range is about £2,350 to £4,410 per m² including VAT, so a 16 m² standard-spec orangery is typically £43,500 to £55,000 in Dunbartonshire.
Book a free site visit in Dunbartonshire
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.