Staines-upon-Thames orangery extensions, designed and built
From the first sketch to final sign-off, we plan and build orangery extensions in Staines-upon-Thames and the surrounding Surrey area.
- Guide price in Staines-upon-ThamesFrom £33,500 inc VAT
- PlanningSame limits as single-storey rear; glazing checked for building regs
- Build time10–16 weeks on site
- Postcode districtsTW15, TW18, TW19, TW20

Who an orangery extension suits
- Period and detached houses with a garden view
- Those who want daylight without overheating
- Homeowners replacing an older conservatory
Guide prices for Staines-upon-Thames
These guide figures apply our South East England adjustment (×1.12) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.
Typical rates in Staines-upon-Thames: £2,690 to £5,040 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 4 m 12 m² | £33,500 – £41,000 | £37,500 – £47,500 | £45,500 – £60,500 |
| 4 m × 4 m 16 m² | £43,000 – £52,000 | £50,000 – £63,000 | £60,500 – £81,000 |
| 4 m × 6 m 24 m² | £64,500 – £78,000 | £75,000 – £94,500 | £91,000 – £121,000 |
Try the guide-price tool to see a range for your own size and finish.
Extensions in and around Staines-upon-Thames
Our survey diary covers Staines-upon-Thames, including TW15, TW18, TW19, TW20. Nearby, we also take on projects in Egham (2 miles), Ashford, Surrey (2 miles), Sunbury-on-Thames (4 miles), Weybridge (5 miles).
Feltham, in Greater London, is roughly 4 miles from Staines-upon-Thames and also on our list. Homes across the South East range from Victorian terraces in the older town centres to large detached houses on the edges, so the right extension type varies street by street.
Planning rules that apply in Staines-upon-Thames
In England a glazed or orangery-style extension follows the same size limits as any single-storey rear extension: 3 m or 4 m without an application, or up to 6 m and 8 m through prior approval. Building regulations limit glazing to about a quarter of the new floor area plus the openings it replaces, unless whole-house calculations show the design still performs.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
How the project works
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
We visit your Staines-upon-Thames home, measure up, talk through what you want and check the planning position.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Your questions about an orangery extension in Staines-upon-Thames
How long does an orangery extension take to build in Staines-upon-Thames?
On site, typically 10 to 16 weeks once approvals are in place. Before that, allow 6–12 weeks design and approvals.
Do you cover all of Staines-upon-Thames?
Yes. We cover Staines-upon-Thames and the surrounding parts of Surrey. Site visits are free and there is no obligation.
Will my neighbours in Staines-upon-Thames be involved?
If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.
Does an orangery need planning permission?
It follows the same size limits as other single-storey extensions. In England many fit within permitted development or prior approval; others need an application.
What is the difference between an orangery and a conservatory?
An orangery has a solid roof perimeter with a central lantern and more solid wall, so it is warmer and more like a room. A conservatory is mostly glass. Building regulations treat a heated orangery joined to the house as an extension.
Book a free site visit in Staines-upon-Thames
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.