Glass box extensions across Tyne and Wear
A glass extension in Tyne and Wear starts with the right design and the right approval route. We take care of both, then build it with our own project management.
- Guide priceFrom £27,000 inc VAT
- PlanningSame limits as single-storey rear; glazing checked for building regs
- Towns covered15
- Site visitFree, no obligation

Towns in Tyne and Wear
Will the council need to approve it?
In England a glazed or orangery-style extension follows the same size limits as any single-storey rear extension: 3 m or 4 m without an application, or up to 6 m and 8 m through prior approval. Building regulations limit glazing to about a quarter of the new floor area plus the openings it replaces, unless whole-house calculations show the design still performs.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
How much does a glass extension cost in Tyne and Wear?
These guide figures apply our North East England adjustment (×0.91) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.
Typical rates in Tyne and Wear: £2,730 to £5,280 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 2 m × 4 m 8 m² | £27,000 – £33,000 | £27,000 – £34,500 | £31,000 – £42,500 |
| 3 m × 4 m 12 m² | £32,500 – £39,500 | £38,000 – £48,500 | £46,500 – £63,500 |
| 3 m × 6 m 18 m² | £49,000 – £59,000 | £57,000 – £72,500 | £70,000 – £95,500 |
For a figure based on your own dimensions, use our guide-price tool.
Covering Tyne and Wear
Towns we cover in Tyne and Wear include Newcastle upon Tyne, Sunderland, South Shields, Gateshead, Washington, Tynemouth, Wallsend, Newburn. The North East has many brick terraces, colliery-era housing and post-war semis, with rear extensions and kitchen extensions the most common requests.
Included in a typical project
- Solar-control and low-energy glass specification
- Design with specialist glazing input
- Drainage details for frameless roofs
- Whole-house energy calculations where needed
- Planning drawings that show the glass detail
Our process, step by step
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions people ask about glass extensions
Do I need building regulations approval in Tyne and Wear?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Do you cover all of Tyne and Wear?
Yes, across the whole of Tyne and Wear. Site visits are free and there is no obligation.
Will my neighbours in Tyne and Wear be involved?
If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.
Are glass extensions cold in winter?
Modern double or triple glazing with warm-edge spacers and underfloor heating keeps them comfortable. They are not as warm as a solid room, and we explain the trade-off honestly.
How much does a glass extension cost?
Our guide range is about £2,730 to £5,280 per m² including VAT, because structural glass is made to order. A 12 m² standard-spec glass extension is typically £38,000 to £48,500 in Tyne and Wear.
Book a free site visit in Tyne and Wear
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.