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Newport, Gwent glass extensions, designed and built

Planning a glass extension in Newport, Gwent? We survey the house, work out the planning route, draw the design and build it, so you deal with one team from the first visit to the completion certificate.

  • Guide price in Newport, GwentFrom £27,500 inc VAT
  • PlanningWelsh permitted development rules (rear up to 4 m)
  • Build time10–16 weeks on site
  • Postcode districtsNP10, NP18, NP19, NP20, NP44
Frameless glass box extension on the rear of a period brick house

Do I need planning permission in Newport, Gwent?

In Wales a glazed or orangery-style extension follows the normal single-storey limits (up to 4 m at the rear). Welsh building regulations also limit glazing and heat loss, so glass-heavy designs need calculations.

In a conservation area, national park, National Landscape or 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. Wales has its own building regulations and approved documents; the council or a registered building control approver checks the plans, inspects the work and issues a completion certificate.

Building over or within 3 m of a public sewer needs the water company's consent before the foundations go in.

Applications are decided by the local planning authority (your county or county borough council, or the national park authority).

Working in Newport, Gwent

Site visits are available across Newport, Gwent (NP10, NP18, NP19, NP20, NP44). Nearby, we also take on projects in Cwmbran (5 miles), Pontypool (8 miles), Chepstow (14 miles), Ebbw Vale (16 miles).

In Wales, terraced houses with rear offshoots are common in the towns, while detached houses and bungalows dominate in rural areas.

What is included

  • Steel or glass beams and slim-frame glazing
  • Drainage details for frameless roofs
  • Design with specialist glazing input
  • Planning drawings that show the glass detail
  • Whole-house energy calculations where needed

Solar gain is the risk. We specify solar-control glass, plan for opening vents or sliding panels, and avoid fully glazed roofs on south-facing extensions unless shading is included.

How much does a glass extension cost in Newport, Gwent?

For Newport, Gwent we adjust our national guide rates by ×0.93, the factor we use for Wales. Figures include VAT; your written quote after the survey replaces them.

Typical rates in Newport, Gwent: £2,790 to £5,390 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
2 m × 4 m
8 m²
£27,500 – £33,500£27,500 – £35,500£31,500 – £43,500
3 m × 4 m
12 m²
£33,000 – £40,500£39,000 – £49,500£47,500 – £65,000
3 m × 6 m
18 m²
£50,000 – £60,500£58,500 – £74,000£71,500 – £97,500

Try the guide-price tool to see a range for your own size and finish.

How the project works

Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.

  1. Free site visit

    First, a site visit: we look at the house, garden, access and drains and listen to what you need.

  2. Design and approvals

    Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.

  3. Fixed written price

    With the design and specification agreed, you get a fixed written price and a start date.

  4. Build and sign-off

    Work is carried out to the agreed programme, inspected by building control and signed off at the end.

Common questions in Newport, Gwent

Who do I contract with for a glass extension in Newport, Gwent?

Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.

Do I need building regulations approval in Newport, Gwent?

Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.

Do you cover all of Newport, Gwent?

Yes, across the whole of Newport, Gwent. Site visits are free and there is no obligation.

How much does a glass extension cost?

Our guide range is about £2,790 to £5,390 per m² including VAT, because structural glass is made to order. A 12 m² standard-spec glass extension is typically £39,000 to £49,500 in Newport, Gwent.

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.

Book a free site visit in Newport, Gwent

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

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