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 Harwich?
In Harwich, 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. Prices across the East of England are typically 6% above the UK average for this kind of work, which is reflected in the range for Harwich. 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 |
Your quote will depend mainly on:
- Amount and type of glazing
- Lantern size
- Size and shape of the footprint
- Opening into the house
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 Harwich?
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.
We check this for your address before design work starts, so there are no surprises later.
What we handle
On a typical orangery we handle:
- Electrics, heating and plastering
- Design to suit the style of the house
- French, sliding or bifold doors
- Building control sign-off where required
- Insulated perimeter roof with internal pelmet
- Flooring and decoration options
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 Harwich
Across the East of England, 1930s and post-war semis, newer estates and rural cottages all feature, each with different extension and loft options.
Projects in Harwich (CO12) are surveyed in person before we quote, so the price reflects your actual property.
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 sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about orangeries in Harwich
Can an orangery replace a conservatory?
Yes. We can remove an old conservatory and build an orangery on new or upgraded foundations.
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.
How long does an orangery take in Harwich?
Typically 8 to 12 weeks on site. Design and approvals beforehand usually take 6 to 12 weeks.
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.
How much does an orangery cost in Harwich?
In Harwich, 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.
