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 Surbiton?
In Surbiton, an orangery typically costs £3,100–£4,400 per m² of floor area, including VAT at 20% (standard rate). For a typical 16 m² project that is roughly £49,500–£70,500. Building costs in London run about 30% above the UK average, and the figures for Surbiton are adjusted to reflect that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (11 m²) | £34,000–£48,500 |
| Typical project (16 m²) | £49,500–£70,500 |
| Larger project (22 m²) | £68,000–£97,000 |
| Rate per m² | £3,100–£4,400 |
The main things that change the cost:
- Frame material and colour
- Heating and flooring
- Opening into the house
- Amount and type of glazing
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 Surbiton?
Here is how the rules work for an orangery 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
Handled as part of most orangeries:
- Foundations and dwarf walls or piers
- Roof lantern and glazed panels
- Design to suit the style of the house
- French, sliding or bifold doors
- Electrics, heating and plastering
- Building control sign-off where required
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 Surbiton
Space is at a premium in London, so homeowners often build out into the side return or up into the roof rather than move.
From KT5 outwards, we take on projects throughout Surbiton and the surrounding parts of Greater London.
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
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed 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 Surbiton
Can it be used all year?
Yes. With an insulated roof, efficient glazing and heating, an orangery is comfortable all year.
How long does it take?
Typically 8 to 12 weeks on site once approvals are in place.
Who approves an orangery in Surbiton?
Planning matters in Surbiton go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
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.
How much does an orangery cost in Surbiton?
In Surbiton, an orangery typically costs £3,100–£4,400 per m² of floor area, including VAT at 20% (standard rate). A typical 16 m² project comes to roughly £49,500–£70,500. Your fixed price depends on the survey and drawings.