Sunderland, Tyne and Wear
Glazed rear extension in Sunderland
Thinking about a glazed rear extension in Sunderland? Full-height glass, slim frames and big rooflights for the most open rear room. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
Sunderland is covered from our Tyne and Wear round, including SR2, SR3, SR4 and SR5. If your garden in Sunderland 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 Sunderland?
Guide prices for a glazed rear extension in Sunderland 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 |
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 Sunderland?
Planning for a glazed rear extension in Sunderland follows the English householder rules.
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 Sunderland like to extend?
Terraces and semis are typical around Sunderland. On terraces a single-storey rear extension across the back yard is usually the practical choice; semis often have room for more.
How a glazed rear extension in Sunderland comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
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 Sunderland
Close by, we work in Ryhope, about 2.3 miles away, and The Boldons, about 3.9 miles away.
- Glazed rear extension in Ryhope
- Glazed rear extension in The Boldons
- Glazed rear extension in Seaham
- Glazed rear extension in Washington
- Glazed rear extension in Houghton-le-Spring
Other work in Sunderland:
FAQ
Glazed rear extension questions in Sunderland
How much does a glazed rear extension cost in Sunderland?
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 you match the brick or stone on my Sunderland house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Will a glass extension be too hot?
Not if it is designed for its orientation, with solar-control glass, shading and ventilation.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.
Do I need planning permission for a rear extension in Sunderland?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.