Single-storey extensions · West Glamorgan

Single-storey extensions in West Glamorgan

Looking for single-storey extensions in West Glamorgan? We take projects from the first visit to the final sign-off, and confirm the price in writing first.

Covering West Glamorgan

Our single-storey extensions service in West Glamorgan covers Swansea, Neath, Ystalyfera and Pontarddulais.

Homes in West Glamorgan

Housing in Wales ranges from terraced streets in the valleys and older industrial towns to stone-built homes in rural areas and modern estates around the cities.

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
  • Measured survey and design drawings
  • Building control application and inspections

What will a single-storey extension cost?

Guide prices for single-storey extensions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.

Single-storey extensionsGuide 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

What approvals does a single-storey extension need in Wales?

Planning decisions in Wales are made by the local council, using permitted development rules set by the Welsh Government rather than England’s. Building regulations in Wales have their own approved documents, and the Party Wall etc. Act 1996 applies to work on shared walls and boundaries.

Wales has its own permitted development rules, set by the Welsh Government.

What can affect a single-storey extension?

  • Large glazed areas need to meet energy rules, which can shape the size of doors and rooflights.
  • Kitchens and doors have long lead times, so we order them early.

How does the project run?

  1. Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
  2. We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
  3. Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
  4. 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 West Glamorgan

How long does a single-storey extension take to build?

The build itself usually takes 10 to 16 weeks once work starts on site. Design, approvals and ordering usually add 6 to 12 weeks before that.

Will the brick match?

We source the closest available match for colour, size and texture and agree a sample panel with you before laying.

How do I get a price for single-storey extensions in West Glamorgan?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Single-storey extensions near West Glamorgan

Learn more about single-storey extensions, or see every project we cover in West Glamorgan.

Planning an extension, loft or new home?

Get a guide price in two minutes, then book a free site visit.

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