Range from the cheapest Basement conversion £29400 (Onyx Iv based in N11) to the dearest Basement conversion £42000 (Build my Space Ltd based in N20).
Comparing extension builders estimates for a Basement conversion 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 North Finchley by posting a job with HaMuch and we will send it to extension builders in North Finchley.
Job | Estimate |
Underpinning a house | £17417 |
Build a two storey extension | £87875 |
Build a timber frame extension | £25917 |
Install a swimming pool | £80917 |
Cost to build a single storey extension | £48336 |
Cost to build a side return extension | £36564 |
Install an RSJ | £2117 |
Build an outbuilding | £9917 |
Build a mansard loft conversion | £51917 |
Cost of a loft conversion | £32970 |
Build a kitchen extension | £41917 |
Build a hip to gable loft conversion | £41917 |
Build a granny annexe | £86917 |
Build a garden office | £9917 |
Convert a garage | £15917 |
Build a new garage | £18417 |
Build a flat roof extension | £21917 |
Build a dormer loft conversion | £41917 |
Lay a concrete foundation | £6167 |
Convert a bungalow loft | £28917 |
Basement conversion cost | £36564 |