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 Welwyn Garden City?
In Welwyn Garden City, a new build home typically costs £2,100–£3,400 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 £315,000–£510,000. We start from a UK-wide guide and adjust it for the East of England, where labour and materials are typically about 6% above average. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (105 m²) | £220,500–£357,000 |
| Typical project (150 m²) | £315,000–£510,000 |
| Larger project (210 m²) | £441,000–£714,000 |
| Rate per m² | £2,100–£3,400 |
Your quote will depend mainly on:
- Size and complexity of the house
- Site access and demolition
- Ground conditions and foundations
- External works and landscaping
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Do you need planning permission for a new build home in Welwyn Garden City?
The approval route for Welwyn Garden City is set by planning law in England. In England a new home needs full planning permission (or permission in principle followed by technical details consent). Councils assess design, access, neighbours and drainage, and the Community Infrastructure Levy may apply, though self-builders can claim an exemption before starting.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
What we take care of:
- Building control completion and warranty liaison
- Internal fit-out and finishes
- Groundworks, foundations and drainage
- Structural and services design
- Design and planning application
- Site appraisal and feasibility
How long does it take?
Allow 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 Welwyn Garden City
Many towns in the East of England have estates built since the 1970s, where garage conversions and rear extensions are popular.
Our Welwyn Garden City coverage includes postcode districts AL8, and we also work in nearby places such as Hatfield, Hertford and St Albans.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about new build homes in Welwyn Garden City
Do you build new build homes in Welwyn Garden City?
Yes. We build new build homes across Welwyn Garden City, including postcodes AL8. Every project starts with a free home visit.
How much does a new build home cost in Welwyn Garden City?
In Welwyn Garden City, a new build home typically costs £2,100–£3,400 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 £315,000–£510,000. Your fixed price depends on the survey and drawings.
Do I need planning permission?
Yes. A new dwelling always needs full planning permission (or permission in principle followed by technical details consent in England).
Is VAT charged on building a new house?
Construction services for a new dwelling are normally zero-rated when supplied by a VAT-registered builder. Self-builders who buy materials directly can reclaim VAT through HMRC’s DIY housebuilders scheme.
Is Community Infrastructure Levy payable?
In areas with CIL, new homes may be liable. Self-builders can apply for an exemption before work starts.