Sandown, Isle of Wight
Glazed rear extension in Sandown
For homes in Sandown, a glazed rear extension is often the simplest way to gain space without moving. Full-height glass, slim frames and big rooflights for the most open rear room. We take it from survey to completion certificate.
We cover Sandown (PO36) as part of our Isle of Wight work. Glass-led rear extensions in Sandown are planned around which way the garden faces, because that decides the glass specification.
Ask about a site visit
Visits here are by arrangement; we'll confirm before booking.
Sandown is outside our regular coverage, so visits and projects here are by arrangement: we confirm whether we can take the job, and agree any travel costs, before the first visit.
How much does a glazed rear extension cost in Sandown?
Guide prices for a glazed rear extension in Sandown start from our South East England rate of £3,140–£5,380 per square metre, including VAT. 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) | £37,500–£64,500 |
| 4 m wide × 6 m deep (24 m²) | £75,500–£129,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a glazed rear extension in Sandown?
The planning route for a glazed rear extension in Sandown is set by England's householder rules and your council.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is within 2 metres of a boundary.
New fabric must meet Approved Document L (2021 edition incorporating 2023 amendments): walls 0.18, roof 0.15 and floor 0.18 W/m²K, windows 1.4 W/m²K or Band B. Under the simple route, new windows, doors and rooflights should not exceed 25% of the extension floor area plus any openings removed; more glass is possible with a whole-house calculation.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Sandown like to extend?
Around Sandown the housing ranges from inter-war semis to 1960s and 1970s estates with good-sized gardens. Many of the newer estates had permitted development rights removed by condition, so we check the planning history before anything is drawn.
How a glazed rear extension in Sandown comes together
Survey visit
We measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Glazed rear extensions near Sandown
Neighbouring places we cover include Shanklin (1.9 miles) and Ryde (5.4 miles).
- Glazed rear extension in Shanklin
- Glazed rear extension in Ryde
- Glazed rear extension in Newport
- Glazed rear extension in East Cowes
- Glazed rear extension in Cowes
Other work in Sandown:
FAQ
Glazed rear extension questions in Sandown
How much does a glazed rear extension cost in Sandown?
As a guide, £3,140–£5,380 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £37,500–£64,500 at that rate. Your written price follows the survey.
Can you match the brick or stone on my Sandown house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Sliding or bifold doors?
Sliders give bigger panes and slimmer sightlines; bifolds open the whole width. Our guide compares them.
Is the site visit in Sandown free?
Visits here are by arrangement; we confirm whether we can take the job and agree any travel costs first.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
What postcode areas do you cover around Sandown?
Including PO36, and the surrounding Isle of Wight area.