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 Derby?
In Derby, an orangery typically costs £2,300–£3,250 per m² of floor area, including VAT at 20% (standard rate). For a typical 16 m² project that is roughly £37,000–£52,000. Building costs in the East Midlands run about 5% below the UK average, and the figures for Derby are adjusted to reflect that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (11 m²) | £25,500–£36,000 |
| Typical project (16 m²) | £37,000–£52,000 |
| Larger project (22 m²) | £50,500–£71,500 |
| Rate per m² | £2,300–£3,250 |
The main things that change the cost:
- Size and shape of the footprint
- Opening into the house
- Amount and type of glazing
- Heating and flooring
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 Derby?
The approval route for Derby is set by planning law 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.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
From survey to sign-off, the job normally involves:
- Design to suit the style of the house
- Foundations and dwarf walls or piers
- Flooring and decoration options
- Electrics, heating and plastering
- Insulated perimeter roof with internal pelmet
- Roof lantern and glazed panels
How long does it take?
Expect 8 to 12 weeks on site. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.
Building in Derby
The East Midlands has a mix of red-brick terraces, inter-war semis and newer estates, so rear extensions and garage conversions are common projects.
Our Derby coverage includes postcode districts DE1, and we also work in nearby places such as Belper, Ilkeston and Heanor.
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 sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about orangeries in Derby
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.
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 it be used all year?
Yes. With an insulated roof, efficient glazing and heating, an orangery is comfortable all year.
How much does an orangery cost in Derby?
In Derby, an orangery typically costs £2,300–£3,250 per m² of floor area, including VAT at 20% (standard rate). A typical 16 m² project comes to roughly £37,000–£52,000. Your fixed price depends on the survey and drawings.
Who approves an orangery in Derby?
Planning matters in Derby go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.