What is a new build home?
A new build home is a house built from the ground up on a cleared plot, a garden plot or a replacement-dwelling site. We work with plot owners and self-builders to design, gain approvals and build the house, either to a fixed design or from initial ideas.
How much does a new build home cost in Caerphilly?
In Caerphilly, a new build home typically costs £1,850–£2,950 per m² of floor area (build cost), including VAT at 0% (zero-rated for qualifying new dwellings). For a typical 150 m² project that is roughly £277,500–£442,500. We start from a UK-wide guide and adjust it for Wales, where labour and materials are typically about 8% below average. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (105 m²) | £194,000–£310,000 |
| Typical project (150 m²) | £277,500–£442,500 |
| Larger project (210 m²) | £388,500–£619,500 |
| Rate per m² | £1,850–£2,950 |
The main things that change the cost:
- Site access and demolition
- Size and complexity of the house
- Specification and energy systems
- Services connections
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for a new build home in Caerphilly?
Approvals for a new build home in Caerphilly follow the rules for Wales. In Wales a new home needs full planning permission. Welsh building regulations require automatic fire suppression (sprinklers) in new homes, and sustainable drainage approval from the council’s SuDS approval body is needed for most new buildings.
Building regulations in Wales are set by the Welsh Government. Approval comes from the council’s building control service or a registered building control approver, with inspections during the work and a completion certificate at the end.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
The work we manage on a new build home:
- Building control completion and warranty liaison
- Structural and services design
- Mechanical and electrical installation
- Superstructure, roof and windows
- Groundworks, foundations and drainage
- Site appraisal and feasibility
How long does it take?
Expect 9 to 14 months on site for a typical house. Before that, surveys, drawings and approvals usually take 4 to 9 months, longer if the council asks for changes.
Building in Caerphilly
Terraced houses in Welsh towns often have narrow plots, which suits rear and side return extensions and rear dormers.
If your home is in Caerphilly or close by in Risca, Pontypridd and Blackwood, a free home visit is the first step.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about new build homes in Caerphilly
Is Community Infrastructure Levy payable?
In areas with CIL, new homes may be liable. Self-builders can apply for an exemption before work starts.
Can you build to my architect’s design?
Yes. We price and build from your drawings, or we can manage the design for you.
What warranty will a new home need?
Lenders usually require a structural warranty or a professional consultant’s certificate. The warranty is arranged before work starts, and the provider inspects the build at key stages.
Do I need planning permission for a new build home in Caerphilly?
In Wales a new home needs full planning permission. Welsh building regulations require automatic fire suppression (sprinklers) in new homes, and sustainable drainage approval from the council’s SuDS approval body is needed for most new buildings.
How much does a new build home cost in Caerphilly?
In Caerphilly, a new build home typically costs £1,850–£2,950 per m² of floor area (build cost), including VAT at 0% (zero-rated for qualifying new dwellings). A typical 150 m² project comes to roughly £277,500–£442,500. Your fixed price depends on the survey and drawings.
How long does a new build home take in Caerphilly?
Typically 9 to 14 months on site for a typical house. Design and approvals beforehand usually take 4 to 9 months.