Orangery extensions across Helensburgh
From the first sketch to final sign-off, we plan and build orangery extensions in Helensburgh and the surrounding Argyll and Bute area.
- Guide price in HelensburghFrom £29,000 inc VAT
- PlanningScottish householder rules; building warrant needed
- Build time10–16 weeks on site
- Postcode districtsG84

Extensions in and around Helensburgh
Our survey diary covers Helensburgh, including G84. Neighbouring towns we cover include Dunoon (8 miles), Oban (39 miles).
Greenock, in Renfrewshire and Inverclyde, is roughly 5 miles from Helensburgh and also on our list. 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.
Do I need planning permission in Helensburgh?
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. Separately, almost every extension needs a building warrant from the council before work starts.
The planning position for a specific Helensburgh address depends on its history and any designations, which is why we check it at the first visit.
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.
Included in a typical project
- Aluminium or timber lantern and full-height glazing
- Foundations, walls and insulated perimeter roof
- Thermal calculations where glazing is generous
- Design of piers, roof perimeter and lantern proportions
Orangery extension prices in Helensburgh
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 Helensburgh: £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 |
Want a range for your exact size? The guide-price tool takes about a minute.
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 produce the drawings and structural design, and manage the approvals so they are in place before work starts.
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.
Questions people ask about orangery extensions
Do I need building regulations approval in Helensburgh?
Yes. Almost every extension needs it, whatever the planning route. In Scotland that means a building warrant before work starts.
Will my neighbours in Helensburgh 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 Helensburgh?
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.
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 Helensburgh.
Book a free site visit in Helensburgh
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.