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 Keynsham?
In Keynsham, 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. Prices in the South West sit near the national average for this kind of work, and the range for Keynsham reflects that. 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:
- Heating and flooring
- Lantern size
- Amount and type of glazing
- Frame material and colour
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 Keynsham?
Before anything is built in Keynsham, we confirm which approvals apply 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.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
On a typical orangery we handle:
- Flooring and decoration options
- Roof lantern and glazed panels
- Foundations and dwarf walls or piers
- Electrics, heating and plastering
- French, sliding or bifold doors
- Building control sign-off where required
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 Keynsham
The South West mixes stone and render cottages with post-war and newer estates, and local materials matter more here when matching an extension.
Our Keynsham coverage includes postcode districts BS30 and BS31, and we also work in nearby places such as Kingswood, Mangotsfield and Bath.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 02
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed 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 Keynsham
Does an orangery need planning permission?
The same rules as a single-storey extension apply. Many are permitted development, depending on depth, height and your house’s location.
Do you build orangeries in Keynsham?
Yes. We build orangeries across Keynsham, including postcodes BS30 and BS31. Every project starts with a free home visit.
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 Keynsham?
In Keynsham, 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.