What is a small housing development?

A small housing development is a scheme of a few new homes, typically two to nine, on a single site. We work with landowners, small developers and investors to build schemes that already have planning permission, or help take a site through planning first.
How much does a small housing development cost in Welwyn Garden City?
In Welwyn Garden City, a small housing development typically costs £1,900–£2,850 per m² of floor area (build cost), including VAT at 0% (zero-rated for qualifying new dwellings). For a typical 400 m² project that is roughly £760,000–£1,140,000. Prices across the East of England are typically 6% above the UK average for this kind of work, which is reflected in the range for Welwyn Garden City. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (280 m²) | £532,000–£798,000 |
| Typical project (400 m²) | £760,000–£1,140,000 |
| Larger project (560 m²) | £1,064,000–£1,596,000 |
| Rate per m² | £1,900–£2,850 |
What moves the price most:
- Number and size of homes
- Site access and phasing
- Planning conditions and obligations
- Roads, sewers and adoption agreements
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a small housing development in Welwyn Garden City?
Whether you need planning permission depends on your house and its location in England. In England small schemes need full planning permission and may involve a section 106 agreement, the Community Infrastructure Levy, highways and drainage approvals, and biodiversity net gain where it applies.
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
On a typical small housing development we handle:
- Design development and discharge of conditions
- External works and landscaping
- Pre-construction cost plan
- House construction to building regulations
- Utility connections
- Handover packs for each home
How long does it take?
Allow 12 to 24 months depending on scheme size. Allow time beforehand for drawings and approvals, usually 6 to 12 months.
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.
Welwyn Garden City sits in Hertfordshire, about 6 miles west of Hertford. We cover the whole of Welwyn Garden City, including postcodes AL8.
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 fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about small housing developments in Welwyn Garden City
Do you work with landowners?
Yes. If you own land, with or without planning permission, we can discuss building on it with you.
Who handles road adoption?
We build roads and sewers to adoptable standards where agreements are in place with the highway authority and water company.
What about biodiversity net gain?
In England, biodiversity net gain rules apply to many developments, with exemptions for some small sites. We work with your ecologist to confirm what applies to your scheme.
How much does a small housing development cost in Welwyn Garden City?
In Welwyn Garden City, a small housing development typically costs £1,900–£2,850 per m² of floor area (build cost), including VAT at 0% (zero-rated for qualifying new dwellings). A typical 400 m² project comes to roughly £760,000–£1,140,000. Your fixed price depends on the survey and drawings.
Do you build small housing developments in Welwyn Garden City?
Yes. We build small housing developments across Welwyn Garden City, including postcodes AL8. Every project starts with a free home visit.
