Cramlington, Northumberland
Glazed rear extension in Cramlington
We plan and build glazed and glass-box rear extensions for homeowners in Cramlington. Full-height glass, slim frames and big rooflights for the most open rear room. Start with a free site visit, then a written price once the design is agreed.
Cramlington is covered from our Northumberland round, including NE22, NE23 and NE24. If your garden in Cramlington 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 Cramlington?
A glazed rear extension in Cramlington is priced at £2,520–£4,320 per square metre including VAT as a guide, before kitchen fit-out and fees. North East prices are among the lowest in our range; former mining ground is the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £30,000–£52,000 |
| 4 m wide × 6 m deep (24 m²) | £60,500–£103,500 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a glazed rear extension in Cramlington?
Whether your glazed rear extension in Cramlington needs a planning application depends on its size, your house and any local restrictions.
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. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Cramlington like to extend?
Brick terraces, colliery houses and post-war semis make up much of Cramlington. Former mining areas often need a coal mining risk check before foundations are designed.
How a glazed rear extension in Cramlington comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
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 Cramlington
From Cramlington, the nearest places we also cover are Bedlington (3.1 miles) and Blyth (4.1 miles).
- Glazed rear extension in Bedlington
- Glazed rear extension in Blyth
- Glazed rear extension in Gosforth
- Glazed rear extension in Ashington
- Glazed rear extension in Whitley Bay
Other work in Cramlington:
FAQ
Glazed rear extension questions in Cramlington
How much does a glazed rear extension cost in Cramlington?
As a guide, £2,520–£4,320 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £30,000–£52,000 at that rate. Your written price follows the survey.
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.
Does glass need planning permission?
The same rules apply as any rear extension; glass does not change the depth or height limits.
Can you match the brick or stone on my Cramlington house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Do you handle building control in Cramlington?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
What postcode areas do you cover around Cramlington?
Including NE22, NE23 and NE24, and the surrounding Northumberland area.