Orangery extensions for homes in Johnstone
A orangery extension in Johnstone starts with the right design and the right approval route. We take care of both, then build it with our own project management.
- Guide price in JohnstoneFrom £29,000 inc VAT
- PlanningScottish householder rules; building warrant needed
- Build time10–16 weeks on site
- Postcode districtsPA5, PA10

Included in a typical project
- Design of piers, roof perimeter and lantern proportions
- Opening into the main house
- Heating sized for the glass area
- Thermal calculations where glazing is generous
- Aluminium or timber lantern and full-height glazing
Orangery extension prices in Johnstone
Prices below are for Johnstone, using the Scotland factor of ×0.98. They are guide ranges including VAT for the build only, not a quote.
Typical rates in Johnstone: £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.
Planning rules that apply in Johnstone
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.
Applications are decided by your council as planning authority.
Local to Johnstone
Site visits are available across Johnstone (PA5, PA10). Neighbouring towns we cover include Paisley (3 miles), Barrhead (5 miles), Erskine (6 miles), Renfrew (6 miles).
Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.
How the project works
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
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Your questions about an orangery extension in Johnstone
Do I need building regulations approval in Johnstone?
Yes. Almost every extension needs it, whatever the planning route. In Scotland that means a building warrant before work starts.
How long does an orangery extension take to build in Johnstone?
On site, typically 10 to 16 weeks once approvals are in place. Before that, allow 6–12 weeks design and approvals.
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Johnstone, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
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 Johnstone.
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.
Book a free site visit in Johnstone
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.