Extension builder estimates (based on hourly rates) to build a single storey extension in N1p
Range from the cheapest single storey extension £ ( based in ) to the dearest single storey extension £ ( based in ).
Comparing extension builders estimates for fitting a downstairs toilet 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 to build a single storey extension in N1p by posting a job with HaMuch and we will send it to extension builders in N1p.
Estimates for common extension builder jobs in N1p;
| Job | Estimate |
| Underpinning a house | £15500 |
| Build a two storey extension | £85000 |
| Build a timber frame extension | £24000 |
| Install a swimming pool | £79000 |
| Cost to build a single storey extension | £10000 |
| Cost to build a side return extension | £15000 |
| Install an RSJ | £200 |
| Build an outbuilding | £8000 |
| Build a mansard loft conversion | £50000 |
| Cost of a loft conversion | £15000 |
| Build a kitchen extension | £40000 |
| Build a hip to gable loft conversion | £40000 |
| Build a granny annexe | £85000 |
| Build a garden office | £8000 |
| Convert a garage | £14000 |
| Build a new garage | £16500 |
| Build a flat roof extension | £20000 |
| Build a dormer loft conversion | £40000 |
| Lay a concrete foundation | £4250 |
| Convert a bungalow loft | £27000 |
| Basement conversion cost | £15000 |