Knock down and rebuild · South Glamorgan

Knock down and rebuild in South Glamorgan

Homeowners across South Glamorgan can get knock down and rebuild from one company: the design, the council approvals and the building work.

Covering South Glamorgan

Our coverage across South Glamorgan includes Cardiff, Barry, Penarth and Llantwit Major.

Homes in South Glamorgan

Across Wales you find valley terraces, coastal towns, rural stone houses and newer estates, so access, slopes and local materials all feature in the design.

What is a knock down and rebuild?

We assess whether rebuilding is better value than extending and renovating, prepare the planning application for the replacement dwelling, manage the demolition notice and asbestos survey, then build the new home. The process runs much like a new build once the old house is cleared.

  • Feasibility: rebuild versus extend and renovate
  • Planning application for the replacement dwelling
  • Reconnection of services and landscaping

How much should I budget for a knock down and rebuild?

What knock down and rebuild typically cost. These are guide ranges; the written quote for your house replaces them.

Knock down and rebuildGuide price
Demolition and site clearance (total)£15,000 to £35,000
Rebuild, standard specification (per m²)£2,100 to £2,600 per m²
Rebuild, good specification (per m²)£2,600 to £3,100 per m²
Rebuild, high specification (per m²)£3,100 to £3,700 per m²

Planning and building rules in South Glamorgan

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.

This needs full planning permission from your council in Wales. We prepare and submit the application and deal with the planning officer on your behalf.

What should South Glamorgan homeowners check first?

  • A replacement dwelling is usually zero-rated for VAT where the old house is demolished completely to ground level.
  • Asbestos is common in post-war houses and must be removed by licensed contractors where required.

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. Site visit. We walk the plot or existing house, look at access, levels, services and boundaries, and talk through what could be built.
  3. Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
  4. Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Your questions answered

Is it cheaper to knock down and rebuild or renovate?

It depends on the existing house. Where a house needs major structural work and a large extension, rebuilding can be similar cost and gives a better result. We compare both at feasibility.

What happens about asbestos?

An asbestos survey is done before demolition and any asbestos is removed safely first.

Who deals with the council for a project in South Glamorgan?

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

Knock down and rebuild near South Glamorgan

Learn more about knock down and rebuild, or see every project we cover in South Glamorgan.

Planning an extension, loft or new home?

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