Home extensions in Isle of Wight
Every type of house extension in Isle of Wight, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Towns listed4
- Price regionSouth East England (×1.12)
- Planning rulesEngland
- Postcode districts12
Towns we cover in Isle of Wight
Towns we cover here include Newport, Isle of Wight, Ryde, Cowes, Sandown.
Choosing the right extension in Isle of Wight
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.
Depending on the plot, wraparound extensions and double-storey extensions are often the strongest options, with single-storey rear extensions worth considering where there is room.
Popular extension prices in Isle of Wight
Use these Isle of Wight guide prices to sense-check a budget; the guide-price tool narrows them to your own size, and the site visit turns them into a written figure.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Orangery extensions | 16 m² | £50,000 – £63,000 |
| Single-storey rear extensions | 20 m² | £45,500 – £58,500 |
| Kitchen extensions | 20 m² | £47,000 – £59,500 |
| Extensions over a garage | 12 m² | £28,000 – £36,500 |
| Conservatory replacement extensions | 14 m² | £33,500 – £43,500 |
| Wraparound extensions | 25 m² | £64,000 – £81,500 |
Planning and building control in Isle of Wight
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
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 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.
Extension types and starting prices
- Pitched roof extensions · from £24,500
- Extension plans and drawings · from £1,300
- Timber frame extensions · from £23,500
- Orangery extensions · from £33,500
- Wraparound extensions · from £40,000
- Bedroom extensions · from £29,000
- Porch extensions · from £4,450
- Bungalow extensions · from £29,000
- Flat roof extensions · from £23,500
- Conservatory replacement extensions · from £22,000
- Kitchen extensions · from £30,000
- Annexe extensions · from £61,500
- Single-storey rear extensions · from £23,500
- Building regulations for extensions · from £1,000
- Home office extensions · from £17,500
- Side return extensions · from £20,000
- Double-storey extensions · from £42,500
- Extensions over a garage · from £26,500
- Planning permission for extensions · from £350
- Utility and boot room extensions · from £15,500
- Glass box extensions · from £33,500
- Side extensions · from £24,500
Neighbouring areas
Questions about extensions in Isle of Wight
How much does an extension cost in Isle of Wight?
With our South East England factor (×1.12), a standard-spec 20 m² single-storey extension is a guide £45,500 to £58,500 including VAT. Prices for every type are linked on this page.
Who do I contract with?
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.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Isle of Wight, and the guide-price tool gives a range for your own size and finish in about a minute.
Do you cover all of Isle of Wight?
Yes, across the whole of Isle of Wight. Site visits are free and there is no obligation.
Book a free site visit in Isle of Wight
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.