Dronfield, Derbyshire
Glazed rear extension in Dronfield
Glazed rear extension in Dronfield: full-height glass, slim frames and big rooflights for the most open rear room. We measure the house, show you what the rules allow, price it in writing and build it.
Dronfield and its postcode districts S18 are part of our Derbyshire coverage. Glass-led rear extensions in Dronfield are planned around which way the garden faces, because that decides the glass specification.
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 Dronfield?
In Dronfield, our guide for a glazed rear extension is £2,720–£4,660 per square metre including VAT for a standard specification. East Midlands prices sit a little below our West Midlands baseline.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £32,500–£56,000 |
| 4 m wide × 6 m deep (24 m²) | £65,000–£111,500 |
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 Dronfield?
Whether your glazed rear extension in Dronfield needs a planning application depends on its size, your house and any local restrictions.
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 Dronfield like to extend?
Dronfield has plenty of inter-war semis and bungalows, and single-storey rear extensions suit both.
How a glazed rear extension in Dronfield 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
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 Dronfield
Close by, we work in Nether Edge, about 4.0 miles away, and Chesterfield, about 4.3 miles away.
- Glazed rear extension in Nether Edge
- Glazed rear extension in Chesterfield
- Glazed rear extension in Fulwood
- Glazed rear extension in Sheffield
- Glazed rear extension in Staveley
Other work in Dronfield:
FAQ
Glazed rear extension questions in Dronfield
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 Dronfield?
Including S18, and the surrounding Derbyshire area.
Is there a limit on how much glass I can have?
In England the simple rule is 25% of the floor area plus openings removed; more is allowed with a calculation showing the house still meets Part L.
Do you handle building control in Dronfield?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Is the site visit in Dronfield 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 Dronfield?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.