Covering Gwent
Our single-storey extensions service in Gwent covers Newport, Cwmbran, Pontypool and Ebbw Vale and more.
Homes in Gwent
Welsh homes include long terraces built into hillsides, stone cottages and modern estates, and sloping sites often shape how and where an extension can go.
What does a single-storey extension involve?
A single-storey extension adds one level of new floor space to the back or side of a house, usually to open up a kitchen, dining or family room. It is the most common way to gain space without moving, and many can be built without a planning application.
- Planning and building regulations checks under Welsh rules
- Building control application and inspections
- Brickwork, roof, glazing and insulation
How much does a single-storey extension cost in Gwent?
What single-storey extensions typically cost. These are guide ranges; the written quote for your house replaces them.
| Single-storey extensions | Guide price incl. VAT |
|---|---|
| Standard specification | £2,600 to £3,000 per m² |
| Good specification | £3,000 to £3,500 per m² |
| High specification | £3,500 to £4,000 per m² |
Do you need permission for a single-storey extension in Gwent?
Welsh projects need planning clearance from the council under Welsh rules, building regulations approval under the Welsh approved documents, and party wall notices where the work affects a neighbour’s wall or foundations.
Wales has its own permitted development rules, set by the Welsh Government.
What should I think about before starting?
- Drains under the footprint may need diverting or a build-over agreement with the water company.
- Kitchens and doors have long lead times, so we order them early.
What happens after I enquire?
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
Questions about a single-storey extension in Gwent
Do you need to dig up the drains?
Sometimes. If a public sewer runs under the extension, the water company has to agree a build-over or a diversion. We check this at survey stage.
Will the brick match?
We source the closest available match for colour, size and texture and agree a sample panel with you before laying.
Do you work in Gwent?
Yes. Gwent is within our coverage for single-storey extensions, along with nearby Newport and Cwmbran.
Single-storey extensions near Gwent
- Single-storey extensions in Newport
- Single-storey extensions in Cwmbran
- Single-storey extensions in Pontypool
- Single-storey extensions in Ebbw Vale
- Single-storey extensions in Caerphilly
- Single-storey extensions in Abergavenny
- Single-storey extensions in Chepstow
- Single-storey extensions in Monmouth
Learn more about single-storey extensions, or see every project we cover in Gwent.

