Tyne and Wear
Glazed and glass-box rear extensions in Tyne and Wear
Full-height glass, slim frames and big rooflights for the most open rear room. We design and build rear extensions across Tyne and Wear, from Newcastle upon Tyne and Sunderland to South Shields, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.
Glass-led rear extensions in Newcastle upon Tyne are planned around which way the garden faces, because that decides the glass specification. Terraces and semis are typical around Tyne and Wear. On terraces a single-storey rear extension across the back yard is usually the practical choice; semis often have room for more.
How much does a glazed rear extension cost in Tyne and Wear?
Guide prices for a glazed rear extension in Tyne and Wear start from our North East England rate of £2,520–£4,320 per square metre, including VAT. 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 in Tyne and Wear?
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part 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.
Where in Tyne and Wear do we work?
FAQ
Questions people ask
Will a glass extension be too hot?
Not if it is designed for its orientation, with solar-control glass, shading and ventilation.
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.
Sliding or bifold doors?
Sliders give bigger panes and slimmer sightlines; bifolds open the whole width. Our guide compares them.
Do you cover all of Tyne and Wear?
We cover 18 towns and districts in Tyne and Wear, including Newcastle upon Tyne, Sunderland and South Shields.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.