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 Exeter?
In Exeter, an orangery typically costs £2,450–£3,450 per m² of floor area, including VAT at 20% (standard rate). For a typical 16 m² project that is roughly £39,000–£55,000. Building costs in the South West are close to the UK average, so the figures for Exeter are close to our national guide. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (11 m²) | £27,000–£38,000 |
| Typical project (16 m²) | £39,000–£55,000 |
| Larger project (22 m²) | £54,000–£76,000 |
| Rate per m² | £2,450–£3,450 |
What moves the price most:
- Amount and type of glazing
- Heating and flooring
- Size and shape of the footprint
- Opening into the house
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 Exeter?
Before anything is built in Exeter, we confirm which approvals apply in England. In England a single-storey rear extension is often permitted development: broadly up to 3 metres deep on a semi-detached or terraced house and 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary, and covering no more than half the garden. The larger home extension scheme allows up to 6 or 8 metres if you notify the council first and neighbours have a chance to comment. In conservation areas, National Parks and National Landscapes the larger home extension route, side extensions and cladding are not permitted development. Flats and houses whose rights have been removed need a planning application, and listed buildings need listed building consent.
Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
From survey to sign-off, the job normally involves:
- Foundations and dwarf walls or piers
- French, sliding or bifold doors
- Insulated perimeter roof with internal pelmet
- Design to suit the style of the house
- Building control sign-off where required
- Roof lantern and glazed panels
How long does it take?
The build itself usually takes 8 to 12 weeks on site. Design and approvals come first and typically take 6 to 12 weeks, depending on the approval route.
Building in Exeter
In parts of the South West, protected landscapes and conservation areas shape what can be built, so materials and roof forms are chosen carefully.
Exeter sits in Devon. We cover the whole of Exeter, including postcodes EX2.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about orangeries in Exeter
How long does an orangery take in Exeter?
Typically 8 to 12 weeks on site. Design and approvals beforehand usually take 6 to 12 weeks.
How much does an orangery cost in Exeter?
In Exeter, an orangery typically costs £2,450–£3,450 per m² of floor area, including VAT at 20% (standard rate). A typical 16 m² project comes to roughly £39,000–£55,000. Your fixed price depends on the survey and drawings.
Can an orangery replace a conservatory?
Yes. We can remove an old conservatory and build an orangery on new or upgraded foundations.
Does an orangery need planning permission?
The same rules as a single-storey extension apply. Many are permitted development, depending on depth, height and your house’s location.
Can it be used all year?
Yes. With an insulated roof, efficient glazing and heating, an orangery is comfortable all year.
