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 Billericay?
In Billericay, 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:
- Size and shape of the footprint
- Lantern size
- Frame material and colour
- 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 Billericay?
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.
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.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
The work we manage on an orangery:
- Flooring and decoration options
- Building control sign-off where required
- Electrics, heating and plastering
- Foundations and dwarf walls or piers
- Roof lantern and glazed panels
- French, sliding or bifold doors
How long does it take?
Allow 8 to 12 weeks on site. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.
Building in Billericay
Many towns in the East of England have estates built since the 1970s, where garage conversions and rear extensions are popular.
We work across Billericay and neighbouring areas such as Basildon, Wickford and Brentwood. Postcodes we cover in Billericay include CM11.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and 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 Billericay
How long does it take?
Typically 8 to 12 weeks on site once approvals are in place.
How much does an orangery cost in Billericay?
In Billericay, 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 Billericay?
Yes. We build orangeries across Billericay, including postcodes CM11. Every project starts with a free home visit.
Can an orangery replace a conservatory?
Yes. We can remove an old conservatory and build an orangery on new or upgraded foundations.