Orangery extensions for homes in Greenwich
Greenwich homeowners can use us for the whole orangery extension project: survey, design, planning or permitted development checks, building regulations and the build itself.
- Guide price in GreenwichFrom £39,000 inc VAT
- PlanningSame limits as single-storey rear; glazing checked for building regs
- Build time10–16 weeks on site
- Postcode districtsSE3, SE4, SE8, SE10, SE13
Planning and approvals in Greenwich
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.
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.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
Applications are decided by the local planning authority (your district, borough or unitary council).
Guide prices for Greenwich
These guide figures apply our London adjustment (×1.3) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.
Typical rates in Greenwich: £3,120 to £5,850 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 4 m 12 m² | £39,000 – £47,500 | £43,500 – £55,000 | £53,000 – £70,500 |
| 4 m × 4 m 16 m² | £49,500 – £60,500 | £58,000 – £73,000 | £70,500 – £94,000 |
| 4 m × 6 m 24 m² | £74,500 – £90,500 | £87,000 – £109,500 | £106,000 – £140,500 |
Try the guide-price tool to see a range for your own size and finish.
Extensions in and around Greenwich
Our survey diary covers Greenwich, including SE3, SE4, SE8, SE10, SE13, SE14. The same team covers New Cross (1 mile), Blackheath (1 mile), Brockley (1 mile), Catford (2 miles), all within easy reach.
Swanley, in Kent, is roughly 10 miles from Greenwich and also on our list. In London, space is at a premium and gardens are often short, so side returns, wraparounds and carefully planned rear extensions tend to make the most of every metre.
When an orangery extension makes sense
- Those who want daylight without overheating
- Homeowners replacing an older conservatory
- Period and detached houses with a garden view
Our process, step by step
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 Greenwich home, measure up, talk through what you want and check the planning position.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Orangery extension questions answered
Do you cover all of Greenwich?
Yes. We cover Greenwich and the surrounding parts of Greater London. Site visits are free and there is no obligation.
Will my neighbours in Greenwich 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.
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Greenwich, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
How much does an orangery cost?
Our guide range is about £3,120 to £5,850 per m² including VAT, so a 16 m² standard-spec orangery is typically £58,000 to £73,000 in Greenwich.
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.
Book a free site visit in Greenwich
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.