Two-storey wraparound extensions in Sandown
If you live in Sandown and need more room without moving, a two-storey wraparound extension is worth a serious look. We handle the drawings, approvals, structure and build.
We take on projects in Sandown by arrangement. Site visits here aren't free as standard, and we'll agree travel costs with you in writing first.
Before you start in Sandown, here's what applies.
- Postcode districts
- PO35 and PO36
- County / area
- The Isle of Wight, England
- Price region
- South East England
- Guide price
- £132,500–£181,500 (£2,360–£3,250 per m²)
- Approval route
- Planning permission is needed: the side part takes it outside permitted development in England.
- Nearest towns
- Shanklin (1.9 miles), Ventnor (4.4 miles), Ryde (5.4 miles)
- Distance to Newport (Isle of Wight)
- about 6.7 miles
- First visit
- By arrangement
About a two-storey wraparound extension
A two-storey wraparound extension is an L-shaped addition that extends both the side and the rear of your house, on two floors. It gives one of the largest gains in floor space of any extension, typically a big open-plan kitchen and living area below and two or more bedrooms or bathrooms above. In England it needs planning permission, because the side part is more than one storey.
We cover postcode districts PO35 and PO36 in and around Sandown, along with neighbouring Shanklin, Ventnor and Ryde.
What it costs in Sandown
Expect a two-storey wraparound extension in Sandown to land somewhere around £132,500–£181,500 for an L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space). Our South East England guide rate is £2,360–£3,250 per m², including VAT. Kitchens, bathroom fittings and flooring are priced separately so you can compare like with like.
| Spec | Per m² | An L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space) |
|---|---|---|
| Essential | £2,180–£2,990 per m² | £122,000–£167,000 |
| Standard | £2,360–£3,250 per m² | £132,500–£181,500 |
| Premium | £2,840–£3,890 per m² | £159,000–£218,000 |
Planning and building regulations in Sandown
In England, a two-storey wraparound extension needs householder planning permission, because any extension beyond a side wall must be single storey to be permitted development. The application costs £548 (or £575 for applications made from 8 December 2026). Councils weigh the side part against the street scene and the rear part against neighbours' light and outlook, and should decide within 8 weeks of validation.
Approval in England: Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
Building regulations: Building regulations approval (full plans recommended) from the council or a registered building control approver, with a completion certificate at the end.
Design points for Sandown homes
The corner post
At the outside corner of the L, there is no existing wall to carry the floor above. Opening the ground floor fully usually means a steel frame or a corner post, and the engineer's design sets how slim it can be. We decide early whether you want a clear corner or a visible post.
Two roofs that meet
A wraparound needs the side roof and rear roof to join cleanly, often with a valley or hip where they meet. Getting pitches and ridge heights right keeps rainwater moving and avoids a bulky mass at the back corner, which neighbours and planners notice.
How we'd run your project
Visit by arrangement
We agree a visit to your home in Sandown and any travel costs with you in writing first, then look at the structure, access and boundaries.
Drawings and permission
Our designers produce plans and elevations, then we take care of planning or permitted development checks with the council covering Sandown.
Technical design
We prepare the building regulations drawings, structural calculations and specification so the build price can be fixed.
Finish and certify
Second fix, plastering and making good, then building control's final inspection and the completion paperwork.
Questions about two-storey wraparound extensions in Sandown
Which postcodes do you cover around Sandown?
We cover Sandown (PO35 and PO36) and nearby places including Shanklin, Ventnor and Ryde, plus the rest of the Isle of Wight. Visits and projects in Sandown are by arrangement, with travel costs agreed in writing first.
Do I need planning permission for a two-storey wraparound extension in Sandown?
Sandown is in England, so England planning rules apply. Planning permission is needed: the side part takes it outside permitted development in England. If in doubt, a lawful development certificate or a planning application gives you certainty before you build.
How much does a two-storey wraparound extension cost in Sandown?
Our guide for South East England, which covers Sandown, is £2,360–£3,250 per m² including VAT. A typical project with an L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space) comes to about £132,500–£181,500. Design and approval fees are extra, and we fix the build price in writing once the design is agreed.
Can I stay at home during a wraparound extension?
Many people do, but a wraparound affects two sides of the house and usually the kitchen, so there will be weeks without a full kitchen. We plan a temporary kitchen, keep a route through the house and seal off the work area. For some families, moving out while the rear wall is opened up is easier.
How much floor space does a wraparound extension add?
It depends on the width of the side plot and the depth at the rear. Our guide prices are based on a typical wraparound with an L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space). Yours may be larger or smaller, and the measured survey shows what your plot can take.
Nearby
We also cover places near Sandown, including:
Other extensions in Sandown
- Rear
- Side
- Part two-storey
- Over a garage
- First floor
- Semi-detached
- Detached
- Kitchen and bedrooms
- Bedroom and en-suite
All two-storey extension services in Sandown · Two-storey wraparound extensions across the Isle of Wight
Ready to talk it through? Call us or send the form and we'll arrange a visit to your home in Sandown.