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 Chester-le-Street?
In Chester-le-Street, an orangery typically costs £2,150–£3,050 per m² of floor area, including VAT at 20% (standard rate). For a typical 16 m² project that is roughly £34,500–£49,000. Building costs in the North East run about 10% below the UK average, and the figures for Chester-le-Street are adjusted to reflect that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (11 m²) | £23,500–£33,500 |
| Typical project (16 m²) | £34,500–£49,000 |
| Larger project (22 m²) | £47,500–£67,000 |
| Rate per m² | £2,150–£3,050 |
What moves the price most:
- Frame material and colour
- Size and shape of the footprint
- Amount and type of glazing
- Heating and flooring
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 Chester-le-Street?
The approval route for Chester-le-Street 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.
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:
- Flooring and decoration options
- French, sliding or bifold doors
- Design to suit the style of the house
- Building control sign-off where required
- Electrics, heating and plastering
- 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 Chester-le-Street
Across the North East, colliery-era terraces and newer estates sit side by side, so the right project depends on the house type.
Chester-le-Street sits in County Durham, about 6 miles north of Durham. We cover the whole of Chester-le-Street, including postcodes DH3.
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 fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed 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 Chester-le-Street
Who approves an orangery in Chester-le-Street?
Planning matters in Chester-le-Street go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
How long does it take?
Typically 8 to 12 weeks on site once approvals are in place.
How much does an orangery cost in Chester-le-Street?
In Chester-le-Street, an orangery typically costs £2,150–£3,050 per m² of floor area, including VAT at 20% (standard rate). A typical 16 m² project comes to roughly £34,500–£49,000. 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.
Can it be used all year?
Yes. With an insulated roof, efficient glazing and heating, an orangery is comfortable all year.
