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 Bentley?
In Bentley, an orangery typically costs £2,250–£3,150 per m² of floor area, including VAT at 20% (standard rate). For a typical 16 m² project that is roughly £36,000–£50,500. The guide for Bentley reflects typical costs in Yorkshire and the Humber, roughly 7% below the UK-wide figure. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (11 m²) | £25,000–£34,500 |
| Typical project (16 m²) | £36,000–£50,500 |
| Larger project (22 m²) | £49,500–£69,500 |
| Rate per m² | £2,250–£3,150 |
Your quote will depend mainly on:
- Opening into the house
- Amount and type of glazing
- Heating and flooring
- Size and shape of the footprint
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 Bentley?
The approval route for Bentley 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.
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:
- Electrics, heating and plastering
- French, sliding or bifold doors
- Design to suit the style of the house
- Building control sign-off where required
- Insulated perimeter roof with internal pelmet
- Foundations and dwarf walls or piers
How long does it take?
Build time is typically 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 Bentley
Yorkshire and the Humber has stone and brick terraces as well as inter-war and newer estates, so materials matching is an early design question.
Our Bentley coverage includes postcode districts DN5, and we also work in nearby places such as Doncaster, Adwick le Street and South Elmsall.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about orangeries in Bentley
Who approves an orangery in Bentley?
Planning matters in Bentley go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
Can it be used all year?
Yes. With an insulated roof, efficient glazing and heating, an orangery is comfortable all year.
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 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.
How much does an orangery cost in Bentley?
In Bentley, an orangery typically costs £2,250–£3,150 per m² of floor area, including VAT at 20% (standard rate). A typical 16 m² project comes to roughly £36,000–£50,500. Your fixed price depends on the survey and drawings.