From £30,120
James Groarke
All works carried out to a very high standard, 30 years experience in all aspects of building works & general plumbing, honest reliable tradesm...
From £33,540
Colin Marsh
Trusted and professional extension builder in NR20. Experienced in all extension buildering work and keeping within budget and on quote. C MARSH BU...
From £27,690
Richard MacDonald
Our team are a well established and well trusted company with many years experiance all roofing and building work completed to th...

Comparing extension builders estimates for a Convert a basement gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost to convert a basement in NR20 by posting a job with HaMuch and we will send it to extension builders in NR20.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Dereham | £25 | £203 |
| Convert A Basement near Broadland | £24 | £194 |
| Convert A Basement near Breckland | £28 | £248 |
| Convert A Basement near Norwich | £25 | £200 |
| Convert A Basement near Kings Lynn & West Norfolk | £31 | £238 |
| Convert A Basement near Thetford | £42 | £277 |
| Convert A Basement near King's Lynn | £33 | £254 |
| Convert A Basement near Great Yarmouth | £13 | £132 |
| Convert A Basement near Waveney | £24 | £200 |
| Convert A Basement near Ely | £40 | £279 |
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 - £16,873

Two storey extension - £87,060

Build a timber frame extension - £25,373

Build a swimming pool - £80,373

Single storey extension - £42,467

Side return extension - £34,450

Install an RSJ - £1,573

Outbuilding - £9,373

Build a Mansard loft conversion - £51,373

Loft conversion - £27,875

Build a kitchen extension - £41,373

Hip to gable loft conversion - £41,373

Granny annexe - £86,373

Garden office - £9,373

Convert a Garage - £15,373

Garage - £17,873

Build a flat roof extension - £21,373

Build a dormer loft conversion - £41,373

Concrete foundations - £5,623

Convert a bungalow loft - £28,373

Convert a basement - £30,450