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 Mangotsfield?
In Mangotsfield, 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 Mangotsfield 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 |
Your quote will depend mainly on:
- Size and shape of the footprint
- Frame material and colour
- Heating and flooring
- Lantern size
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Do you need planning permission for an orangery in Mangotsfield?
Whether you need planning permission depends on your house and its location 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.
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:
- French, sliding or bifold doors
- Design to suit the style of the house
- Electrics, heating and plastering
- Roof lantern and glazed panels
- Building control sign-off where required
- Foundations and dwarf walls or piers
How long does it take?
Build time is typically 8 to 12 weeks on site. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.
Building in Mangotsfield
In parts of the South West, protected landscapes and conservation areas shape what can be built, so materials and roof forms are chosen carefully.
From BS16 outwards, we take on projects throughout Mangotsfield and the surrounding parts of Gloucestershire.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about orangeries in Mangotsfield
How long does it take?
Typically 8 to 12 weeks on site once approvals are in place.
How much does an orangery cost in Mangotsfield?
In Mangotsfield, 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.
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.
Who approves an orangery in Mangotsfield?
Planning matters in Mangotsfield go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
Does an orangery need building regulations approval?
If it is open to the house or does not meet the conservatory exemption, yes. Most orangeries are treated as extensions and need building control approval, which we arrange.
