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 East Dereham?
In East Dereham, 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. That range is adjusted for the East of England, where domestic building work typically costs around 6% above the national average. 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 |
The main things that change the cost:
- Opening into the house
- Frame material and colour
- Heating and flooring
- Size and shape of the footprint
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 East Dereham?
The approval route for East Dereham 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.
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:
- Building control sign-off where required
- Roof lantern and glazed panels
- Flooring and decoration options
- Electrics, heating and plastering
- Insulated perimeter roof with internal pelmet
- Foundations and dwarf walls or piers
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 East Dereham
Many towns in the East of England have estates built since the 1970s, where garage conversions and rear extensions are popular.
East Dereham sits in Norfolk, about 16 miles west of Norwich. We cover the whole of East Dereham, including postcodes NR19.
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
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about orangeries in East Dereham
How long does an orangery take in East Dereham?
Typically 8 to 12 weeks on site. Design and approvals beforehand usually take 6 to 12 weeks.
How much does an orangery cost in East Dereham?
In East Dereham, 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.
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.
Can it be used all year?
Yes. With an insulated roof, efficient glazing and heating, an orangery is comfortable all year.
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.