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Orangery extensions in Whitstable

Our design and build teams take on orangery extensions in Whitstable, from the first measured survey through planning and building control to the finished room.

  • Guide price in WhitstableFrom £33,500 inc VAT
  • PlanningSame limits as single-storey rear; glazing checked for building regs
  • Build time10–16 weeks on site
  • Postcode districtsCT5
Orangery extension with brick piers, a glass roof lantern and French doors

Working in Whitstable

Site visits are available across Whitstable (CT5). We also work in nearby Herne Bay (5 miles), Canterbury (6 miles), Faversham (7 miles), Sittingbourne (13 miles).

For homes towards Essex, Southend-on-Sea is around 18 miles away. In the South East, plenty of houses have already been extended once, which makes checking the remaining permitted development allowance an important early step.

Included in a typical project

  • Aluminium or timber lantern and full-height glazing
  • Foundations, walls and insulated perimeter roof
  • Opening into the main house
  • Thermal calculations where glazing is generous

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.

Do I need planning permission in Whitstable?

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.

Homes in conservation areas, national parks, National Landscapes (formerly AONBs), the Broads and World Heritage Sites have tighter rules, so we always check the property's status and planning history before design starts.

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 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).

How much does an orangery extension cost in Whitstable?

Prices below are for Whitstable, using the South East England factor of ×1.12. They are guide ranges including VAT for the build only, not a quote.

Typical rates in Whitstable: £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

For a figure based on your own dimensions, use our guide-price tool.

What happens next

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

    First, a site visit: we look at the house, garden, access and drains and listen to what you need.

  2. Design and approvals

    We draw the design, agree it with you and handle planning or permitted development checks and building regulations.

  3. Fixed written price

    With the design and specification agreed, you get a fixed written price and a start date.

  4. Build and sign-off

    The build is managed from start to finish, inspected at each stage and signed off on completion.

Your questions about an orangery extension in Whitstable

Will my neighbours in Whitstable 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.

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

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.

Do I need building regulations approval in Whitstable?

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

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.

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 Whitstable.

Book a free site visit in Whitstable

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 .

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