Newport, Isle of Wight house extensions
Planning an extension in Newport, Isle of Wight? Compare extension types, see guide prices adjusted for Newport, Isle of Wight and book a free site visit.
- Postcode districtsPO30
- Price regionSouth East England (×1.12)
- Planning rulesEngland
- Site visitFree, no obligation
Choosing the right extension in Newport, 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.
The types we would usually look at first for a home in Newport, Isle of Wight are double-storey extensions, orangery extensions and wraparound extensions, depending on the garden and how the house is laid out.
Approvals for an extension in Newport, 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 England a two-storey rear extension is permitted development only if it projects no more than 3 m from the original rear wall, sits at least 7 m from the rear boundary, matches the roof pitch and uses obscure, non-opening side windows upstairs. Most two-storey extensions therefore go through a householder planning application, which costs £548 from 1 April 2026 and normally takes about 8 weeks.
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.
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.
Applications are decided by the local planning authority (your district, borough or unitary council).
Where we work near Newport, Isle of Wight
Site visits are available across Newport, Isle of Wight (PO30). Neighbouring towns we cover include Cowes (4 miles), Ryde (6 miles), Sandown (7 miles).
What extensions cost in Newport, Isle of Wight
Use these Newport, 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) |
|---|---|---|
| Extensions over a garage | 12 m² | £28,000 – £36,500 |
| Conservatory replacement extensions | 14 m² | £33,500 – £43,500 |
| Orangery extensions | 16 m² | £50,000 – £63,000 |
| Wraparound extensions | 25 m² | £64,000 – £81,500 |
| Kitchen extensions | 20 m² | £47,000 – £59,500 |
| Side return extensions | 11 m² | £29,500 – £37,000 |
| Double-storey extensions | 32 m² | £64,500 – £84,500 |
Extension types and starting prices
- Extensions over a garage · from £26,500
- Utility and boot room extensions · from £15,500
- Home office extensions · from £17,500
- Double-storey extensions · from £42,500
- Conservatory replacement extensions · from £22,000
- Flat roof extensions · from £23,500
- Orangery extensions · from £33,500
- Pitched roof extensions · from £24,500
- Porch extensions · from £4,450
- Bungalow extensions · from £29,000
- Kitchen extensions · from £30,000
- Planning permission for extensions · from £350
- Single-storey rear extensions · from £23,500
- Glass box extensions · from £33,500
- Wraparound extensions · from £40,000
- Side return extensions · from £20,000
- Side extensions · from £24,500
- Annexe extensions · from £61,500
- Building regulations for extensions · from £1,000
- Timber frame extensions · from £23,500
- Extension plans and drawings · from £1,300
- Bedroom extensions · from £29,000
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
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
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Newport, Isle of Wight
How much does an extension cost in Newport, Isle of Wight?
Using our South East England factor (×1.12), a standard-spec single-storey extension of 20 m² is a guide £45,500 to £58,500 including VAT, and a 32 m² two-storey extension £64,500 to £84,500. Your written price follows the survey.
How long does an extension take in Newport, Isle of Wight?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Do I need planning permission for an extension in Newport, Isle of Wight?
Not always. It depends on the size, position and your property's history. Many single-storey rear extensions in England are permitted development or can use prior approval.
Do you cover all of Newport, Isle of Wight?
Yes, across the whole of Newport, Isle of Wight. Site visits are free and there is no obligation.
Book a free site visit in Newport, 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.