Isle of Wight
Single-storey rear extensions in the Isle of Wight
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. Rear extensions in the Isle of Wight: we cover 6 towns including Newport, Ryde and Cowes, with design, approvals and the build under one contract.
Island and remote addresses in the Isle of Wight are by arrangement: we confirm whether we can take the job, and agree any travel costs, before the first visit.
A depth of 3 to 4 metres keeps many single-storey rear extensions in Newport within permitted development, subject to the house's planning history. Commuter semis and detached houses make up much of the Isle of Wight, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How much does a single-storey rear extension cost in the Isle of Wight?
For Isle of Wight we work from the South East England rate: £2,130–£3,470 per square metre of new floor, including VAT, standard specification. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £25,500–£41,500 |
| 4 m wide × 5 m deep (20 m²) | £42,500–£69,500 |
| 4 m wide × 6 m deep (24 m²) | £51,000–£83,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission in the Isle of Wight?
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.
England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent.
Where in the Isle of Wight do we work?
FAQ
Questions people ask
How deep can a single-storey rear extension be without planning?
In England, 3 metres on an attached house and 4 metres on a detached house under permitted development, or up to 6 and 8 metres with prior approval. Wales allows 4 metres; Scotland and Northern Ireland have their own limits.
Is a flat roof or a pitched roof better?
A warm flat roof keeps the extension low under first-floor windows and suits a roof lantern; a pitched or lean-to roof gives a vaulted ceiling. Both last for decades when built properly.
Can I stay in the house during the build?
Usually yes. The noisiest, dustiest stage, removing the back wall, is kept to the final weeks and screened off. Most families set up a temporary kitchen elsewhere in the house.
Do you cover all of the Isle of Wight?
We cover 6 towns and districts in the Isle of Wight, including Newport, Ryde and Cowes. Remote and island addresses are by arrangement.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.