Extension builder estimates (based on hourly rates) to build a single storey extension in N10
Range from the cheapest single storey extension £35600 (Onyx Iv based in N11) to the dearest single storey extension £66000 (Romex Building Service based in N22).
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 N10 by posting a job with HaMuch and we will send it to extension builders in N10.
Estimates for common extension builder jobs in N10;
| Job | Estimate |
| Underpinning a house | £17411 |
| Build a two storey extension | £87867 |
| Build a timber frame extension | £25911 |
| Install a swimming pool | £80911 |
| Cost to build a single storey extension | £48221 |
| Cost to build a side return extension | £36499 |
| Install an RSJ | £2111 |
| Build an outbuilding | £9911 |
| Build a mansard loft conversion | £51911 |
| Cost of a loft conversion | £32916 |
| Build a kitchen extension | £41911 |
| Build a hip to gable loft conversion | £41911 |
| Build a granny annexe | £86911 |
| Build a garden office | £9911 |
| Convert a garage | £15911 |
| Build a flat roof extension | £21911 |
| Build a dormer loft conversion | £41911 |
| Lay a concrete foundation | £6161 |
| Convert a bungalow loft | £28911 |
| Basement conversion cost | £36499 |