Extension builder estimates (based on hourly rates) to build a single storey extension in IP1
Range from the cheapest single storey extension £33200 (The Birch Group based in IP10) to the dearest single storey extension £43600 (A & K PROJECTS LTD based in IP11).
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 IP1 by posting a job with HaMuch and we will send it to extension builders in IP1.
Estimates for common extension builder jobs in IP1;
| Job | Estimate |
| Underpinning a house | £17050 |
| Build a two storey extension | £87326 |
| Build a timber frame extension | £25550 |
| Install a swimming pool | £80550 |
| Cost to build a single storey extension | £41008 |
| Cost to build a side return extension | £32442 |
| Install an RSJ | £1750 |
| Build an outbuilding | £9550 |
| Build a mansard loft conversion | £51550 |
| Cost of a loft conversion | £29535 |
| Build a kitchen extension | £41550 |
| Build a hip to gable loft conversion | £41550 |
| Build a granny annexe | £86550 |
| Build a garden office | £9550 |
| Convert a garage | £15550 |
| Build a flat roof extension | £21550 |
| Build a dormer loft conversion | £41550 |
| Lay a concrete foundation | £5800 |
| Convert a bungalow loft | £28550 |
| Basement conversion cost | £32442 |