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 Gorseinon?
In Gorseinon, an orangery typically costs £2,200–£3,150 per m² of floor area, including VAT at 20% (standard rate). For a typical 16 m² project that is roughly £35,000–£50,500. Prices across Wales are typically 8% below the UK average for this kind of work, which is reflected in the range for Gorseinon. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (11 m²) | £24,000–£34,500 |
| Typical project (16 m²) | £35,000–£50,500 |
| Larger project (22 m²) | £48,500–£69,500 |
| Rate per m² | £2,200–£3,150 |
Your quote will depend mainly on:
- Frame material and colour
- Lantern size
- Heating and flooring
- Size and shape of the footprint
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for an orangery in Gorseinon?
Approvals for an orangery in Gorseinon follow the rules for Wales. In Wales a single-storey rear extension is often permitted development: up to 4 metres beyond the rear wall and up to 4 metres high, with eaves no higher than 3 metres within 2 metres of a boundary and no more than half the land around the original house covered. Wales has no larger home extension prior approval route, so deeper extensions need a planning application, as do extensions to flats, listed buildings and houses whose rights have been removed.
Building regulations in Wales are set by the Welsh Government. Approval comes from the council’s building control service or a registered building control approver, with inspections during the work and a completion certificate at the end.
We check this for your address before design work starts, so there are no surprises later.
What we handle
On a typical orangery we handle:
- Flooring and decoration options
- Electrics, heating and plastering
- Design to suit the style of the house
- Building control sign-off where required
- Insulated perimeter roof with internal pelmet
- 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 Gorseinon
Terraced houses in Welsh towns often have narrow plots, which suits rear and side return extensions and rear dormers.
We work across Gorseinon and neighbouring areas such as Llanelli, Swansea and Clydach. Postcodes we cover in Gorseinon include SA4.
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
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 Gorseinon
Do I need planning permission for an orangery in Gorseinon?
In Wales a single-storey rear extension is often permitted development: up to 4 metres beyond the rear wall and up to 4 metres high, with eaves no higher than 3 metres within 2 metres of a boundary and no more than half the land around the original house covered. Wales has no larger home extension prior approval route, so deeper extensions need a planning application, as do extensions to flats, listed buildings and houses whose rights have been removed.
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.
Can an orangery replace a conservatory?
Yes. We can remove an old conservatory and build an orangery on new or upgraded foundations.
How much does an orangery cost in Gorseinon?
In Gorseinon, an orangery typically costs £2,200–£3,150 per m² of floor area, including VAT at 20% (standard rate). A typical 16 m² project comes to roughly £35,000–£50,500. Your fixed price depends on the survey and drawings.
How long does an orangery take in Gorseinon?
Typically 8 to 12 weeks on site. Design and approvals beforehand usually take 6 to 12 weeks.
Can it be used all year?
Yes. With an insulated roof, efficient glazing and heating, an orangery is comfortable all year.
