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 Witham?
In Witham, an orangery typically costs £2,550–£3,600 per m² of floor area, including VAT at 20% (standard rate). For a typical 16 m² project that is roughly £41,000–£57,500. Building costs in the East of England run about 6% above the UK average, and the figures for Witham are adjusted to reflect that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (11 m²) | £28,000–£39,500 |
| Typical project (16 m²) | £41,000–£57,500 |
| Larger project (22 m²) | £56,000–£79,000 |
| Rate per m² | £2,550–£3,600 |
What moves the price most:
- Amount and type of glazing
- Heating and flooring
- Size and shape of the footprint
- Opening into the house
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for an orangery in Witham?
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.
We check this for your address before design work starts, so there are no surprises later.
What we handle
Handled as part of most orangeries:
- Foundations and dwarf walls or piers
- Insulated perimeter roof with internal pelmet
- Building control sign-off where required
- Design to suit the style of the house
- Electrics, heating and plastering
- French, sliding or bifold doors
How long does it take?
Build time is typically 8 to 12 weeks on site. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.
Building in Witham
Many towns in the East of England have estates built since the 1970s, where garage conversions and rear extensions are popular.
We work across Witham and neighbouring areas such as Maldon, Braintree and Chelmsford. Postcodes we cover in Witham include CM8.
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
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 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 Witham
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.
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 Witham?
In Witham, an orangery typically costs £2,550–£3,600 per m² of floor area, including VAT at 20% (standard rate). A typical 16 m² project comes to roughly £41,000–£57,500. Your fixed price depends on the survey and drawings.
Can it be used all year?
Yes. With an insulated roof, efficient glazing and heating, an orangery is comfortable all year.
Do you build orangeries in Witham?
Yes. We build orangeries across Witham, including postcodes CM8. Every project starts with a free home visit.