Wraparound extensions · Penarth

Wraparound extensions in Penarth

If you live in Penarth and want wraparound extensions, we can take the whole job off your hands, from measuring the house to handing over a finished room.

Covering Penarth

Our coverage around Penarth (CF64) also includes Cardiff, Whitchurch and Barry.

Homes in South Glamorgan

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 is included in a wraparound extension in Penarth?

A wraparound extension combines a side return and a rear extension into one L-shaped build, giving the biggest possible ground-floor space on terraced and semi-detached houses. It usually creates a large open-plan kitchen, dining and living area across the back of the house.

  • Planning and building regulations checks under Welsh rules
  • Pitched, flat or glazed roof with rooflights
  • Glazing, insulation, plastering and electrics

What is the guide price for a wraparound extension in Penarth?

Typical ranges for wraparound extensions. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.

Wraparound extensionsGuide price incl. VAT
Standard specification£3,400 to £3,800 per m²
Good specification£3,800 to £4,250 per m²
High specification£4,250 to £4,700 per m²

Do you need permission for a wraparound extension in Penarth?

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 should Penarth homeowners check first?

  • The corner steel connection is the critical detail and is designed by a structural engineer.
  • An open-plan space this size needs a heating plan, often underfloor heating.

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. Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
  4. We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Wraparound extensions: common questions

How much does a wraparound extension cost?

Typically £3,400 to £4,700 per square metre including VAT. Many come in between £85,000 and £120,000 before the kitchen.

Can we keep part of the kitchen working?

Often, by sequencing the work so the old back wall comes out last. We agree a plan with you before starting.

Who deals with the council for a project in Penarth?

We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.

Other towns nearby

Learn more about wraparound extensions, or see every project we cover in Penarth.

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