Knock down and rebuild in Penarth

Covering Penarth

Penarth sits 3 miles south of Cardiff, with Cardiff 3 miles to the north and Whitchurch 5 miles to the north.

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 knock down and rebuild in Penarth?

Knock down and rebuild means demolishing an existing house and building a new one in its place, often a bungalow or poorly built post-war house replaced by a larger, more efficient home. Because the new house counts as a new dwelling, the build is usually zero-rated for VAT.

Asbestos survey, demolition notice and service disconnections
Demolition and site clearance
Reconnection of services and landscaping

What will a knock down and rebuild cost?

Guide prices for knock down and rebuild, including VAT where it applies. Your fixed price is confirmed in writing after the survey.

Knock down and rebuild	Guide 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

How is a knock down and rebuild approved in Penarth?

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 can affect a knock down and rebuild?

You will need somewhere to live for most of a year.
Planning policy on replacement dwellings varies, especially in green belt and countryside.

What are the steps?

Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
Site visit. We walk the plot or existing house, look at access, levels, services and boundaries, and talk through what could be built.
Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

Knock down and rebuild: common questions

Is VAT charged on a knock down and rebuild?

Usually not on the new house, if the old one is demolished completely and the new building is a qualifying dwelling.

How long does it take?

Around 36 to 60 weeks including demolition.

How do I get a price for knock down and rebuild in Penarth?

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

Knock down and rebuild near Penarth

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