Great Sankey, Cheshire
Glazed rear extension in Great Sankey
Full-height glass, slim frames and big rooflights for the most open rear room. We design, get the approvals for and build glazed and glass-box rear extensions in Great Sankey and the surrounding area, with one contract from the first survey to building control sign-off.
Great Sankey sits in Cheshire, with postcode districts including WA5. If your garden in Great Sankey faces south, expect us to talk about overhangs and solar-control glass before frame colours.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a glazed rear extension cost in Great Sankey?
In Great Sankey, our guide for a glazed rear extension is £2,630–£4,510 per square metre including VAT for a standard specification. North West prices sit below our West Midlands baseline; access on terraced streets is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £31,500–£54,000 |
| 4 m wide × 6 m deep (24 m²) | £63,000–£108,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a glazed rear extension in Great Sankey?
The planning route for a glazed rear extension in Great Sankey is set by England's householder rules and your council.
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.
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. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Great Sankey like to extend?
Great Sankey has long runs of terraced houses with back yards and alleys, plus 1930s semis further out. Yard extensions on terraces are often single-storey and close to both boundaries.
How a glazed rear extension in Great Sankey comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Glazed rear extensions near Great Sankey
We also build glazed and glass-box rear extensions in nearby Warrington (2.5 miles) and Newton-le-Willows (4.3 miles).
- Glazed rear extension in Warrington
- Glazed rear extension in Newton-le-Willows
- Glazed rear extension in Widnes
- Glazed rear extension in Runcorn
- Glazed rear extension in Rainhill
Other work in Great Sankey:
FAQ
Glazed rear extension questions in Great Sankey
Do you handle building control in Great Sankey?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
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.
Can I have a level threshold?
Yes, with a drainage channel outside the doors and the slab set to the patio level.
What postcode areas do you cover around Great Sankey?
Including WA5, and the surrounding Cheshire area.
Is the site visit in Great Sankey free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How long does a rear extension take to build in Great Sankey?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.