From £87,952
Hatfield, AL10
Architecture and Construction all in one place.
FREE DRAWINGS for all projects we build.
From £88,420
Hatfield, AL10
Need to find an Extension Builder near you for all your extension buildering work?
Buildline provides a local, trusted extension buildering...
From £88,324
Hatfield, AL10
VALLEYCREST CONSTRUCTION LTD is a trusted extension builder serving customers in Hatfield and the surrounding area. Contact us to today to get a co...
From £88,516
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £88,108
Hatfield, AL10
A1 Home Care Building Maintenance are here to help customers who need an Extension Builder in Hatfield. We offer a competitive rate to complete all...
From £87,808
Hatfield, AL10
Mick O Farrell Builders are here to help customers who need an Extension Builder in Hatfield. We offer a competitive rate to complete all your exte...
From £88,348
Buyerz Trading is an established and experienced local extension builder in Hatfield. Please contact us for a free, no obligation quote and competi...
From £88,564
Need to find an Extension Builder near you for all your extension buildering work?
G FORCE BUILDERS provides a local, trusted extension bui...
From £88,312
NJG BUILDING SOLUTIONS LTD is an established and experienced local extension builder in Hatfield. Please contact us for a free, no obligation quote...
From £88,276
Lemsford Building is a trusted extension builder serving customers in Hatfield and the surrounding area. Contact us to today to get a competitive q...

Costs range from £87,808 (Mick O Farrell Builders based in AL10) to £88,564 (G FORCE BUILDERS based in AL9), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Hatfield | £64 | £283 |
| Two Storey Extension near Welwyn Garden City | £42 | £268 |
| Two Storey Extension near Potters Bar | £43 | £273 |
| Two Storey Extension near St Albans | £63 | £288 |
| Two Storey Extension near Harpenden | £86 | £315 |
| Two Storey Extension near Hertford | £46 | £289 |
| Two Storey Extension near Borehamwood | £42 | £270 |
| Two Storey Extension near High Barnet | £43 | £272 |
| Two Storey Extension near Cheshunt | £48 | £286 |
| Two Storey Extension near Hoddesdon | £46 | £296 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,675

Two storey extension - £88,263

Build a timber frame extension - £26,175

Build a swimming pool - £81,175

Single storey extension - £58,504

Side return extension - £43,471

Install an RSJ - £2,375

Outbuilding - £10,175

Build a Mansard loft conversion - £52,175

Loft conversion - £35,393

Build a kitchen extension - £42,175

Hip to gable loft conversion - £42,175

Granny annexe - £87,175

Garden office - £10,175

Convert a Garage - £16,175

Garage - £18,675

Build a flat roof extension - £22,175

Build a dormer loft conversion - £42,175

Concrete foundations - £6,425

Convert a bungalow loft - £29,175

Convert a basement - £39,471