What is an orangery?
An orangery is an extension with brick or block piers, large areas of glazing and a solid perimeter roof around a central roof lantern. It sits between a conservatory and a traditional extension: brighter than an extension, warmer and more private than a conservatory.
How much does an orangery cost in Johnstone?
In Johnstone, an orangery typically costs £2,350–£3,300 per m² of floor area, including VAT at 20% (standard rate). For a typical 16 m² project that is roughly £37,500–£53,000. Building costs in Scotland are close to the UK average, so the figures for Johnstone are close to our national guide. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (11 m²) | £26,000–£36,500 |
| Typical project (16 m²) | £37,500–£53,000 |
| Larger project (22 m²) | £51,500–£72,500 |
| Rate per m² | £2,350–£3,300 |
The main things that change the cost:
- Size and shape of the footprint
- Amount and type of glazing
- Heating and flooring
- Lantern size
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Do you need planning permission for an orangery in Johnstone?
Whether you need planning permission depends on your house and its location in Scotland. In Scotland a single-storey extension is often permitted development (Class 1A): where any part is within 1 metre of a boundary, it can project up to 3 metres from the rear wall of a terraced house or 4 metres on other houses, with eaves no higher than 3 metres, an overall height of 4 metres and no more than half the front or rear garden covered. The rights do not apply in conservation areas or to flats, and a building warrant will usually still be needed before work starts.
Scotland has no Party Wall Act. Work on shared walls is governed by your title deeds, the Tenements (Scotland) Act 2004 for flats, and common law, so we agree arrangements with neighbours in writing before work starts.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
From survey to sign-off, the job normally involves:
- Electrics, heating and plastering
- Insulated perimeter roof with internal pelmet
- French, sliding or bifold doors
- Foundations and dwarf walls or piers
- Design to suit the style of the house
- Flooring and decoration options
How long does it take?
The build itself usually takes 8 to 12 weeks on site. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.
Building in Johnstone
In Scotland, bungalows and one-and-a-half-storey homes are common, so dormer conversions are a popular way to add bedrooms.
From PA5 outwards, we take on projects throughout Johnstone and the surrounding parts of Renfrewshire and Inverclyde.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about orangeries in Johnstone
How much does an orangery cost in Johnstone?
In Johnstone, an orangery typically costs £2,350–£3,300 per m² of floor area, including VAT at 20% (standard rate). A typical 16 m² project comes to roughly £37,500–£53,000. Your fixed price depends on the survey and drawings.
Can it be used all year?
Yes. With an insulated roof, efficient glazing and heating, an orangery is comfortable all year.
What is the difference between an orangery and a conservatory?
An orangery has a solid roof around a central lantern and more brickwork, while a conservatory is mostly glazed. Orangeries are usually warmer in winter and cooler in summer.
Do I need planning permission for an orangery in Johnstone?
In Scotland a single-storey extension is often permitted development (Class 1A): where any part is within 1 metre of a boundary, it can project up to 3 metres from the rear wall of a terraced house or 4 metres on other houses, with eaves no higher than 3 metres, an overall height of 4 metres and no more than half the front or rear garden covered. The rights do not apply in conservation areas or to flats, and a building warrant will usually still be needed before work starts.
Can an orangery replace a conservatory?
Yes. We can remove an old conservatory and build an orangery on new or upgraded foundations.
Do you build orangeries in Johnstone?
Yes. We build orangeries across Johnstone, including postcodes PA5. Every project starts with a free home visit.