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Canterbury orangery extensions, designed and built

Canterbury 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 CanterburyFrom £33,500 inc VAT
  • PlanningSame limits as single-storey rear; glazing checked for building regs
  • Build time10–16 weeks on site
  • Postcode districtsCT1, CT2
Orangery extension with brick piers, a glass roof lantern and French doors

Orangery extension prices in Canterbury

Labour and material costs vary across the UK, so for Canterbury we use our South East England factor (×1.12). The ranges include VAT and exclude design, structural and council fees.

Typical rates in Canterbury: £2,690 to £5,040 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
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.

Is an orangery extension right for your house?

  • Homeowners replacing an older conservatory
  • Those who want daylight without overheating
  • Period and detached houses with a garden view

The lantern-to-roof ratio sets the character. A wider solid perimeter gives a calmer, more room-like space and hides downlights and speakers; a bigger lantern feels brighter but needs more care against summer heat.

Planning rules that apply in Canterbury

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.

In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.

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).

Working in Canterbury

Our survey diary covers Canterbury, including CT1, CT2. Nearby, we also take on projects in Whitstable (6 miles), Herne Bay (7 miles), Faversham (9 miles), Ashford, Kent (13 miles).

Southend-on-Sea, in Essex, is roughly 24 miles from Canterbury and also on our list. The South East has a broad mix of 1930s semis, post-war estates, newer developments and period cottages, and many houses have enough garden for a generous rear extension.

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.

  1. Free site visit

    It starts with a visit to your house to measure, check access and talk through ideas and budget.

  2. Design and approvals

    We produce the drawings and structural design, and manage the approvals so they are in place before work starts.

  3. Fixed written price

    You receive a written, itemised price and programme. Nothing starts until you are happy with it.

  4. Build and sign-off

    We build it with one project manager, book the building control inspections and hand over the completion certificate.

Common questions in Canterbury

Do you cover all of Canterbury?

Yes. We cover Canterbury and the surrounding parts of Kent. Site visits are free and there is no obligation.

Do I need building regulations approval in Canterbury?

Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.

Who do I contract with for an orangery extension in Canterbury?

Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.

How much does an orangery cost?

Our guide range is about £2,690 to £5,040 per m² including VAT, so a 16 m² standard-spec orangery is typically £50,000 to £63,000 in Canterbury.

Will an orangery be too hot in summer?

Not if it is designed with solar-control glass, a solid perimeter and ventilation. We size the lantern and opening vents with that in mind.

Book a free site visit in Canterbury

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

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