Range from the cheapest Basement conversion £28500 (Atlantis Construction based in SW17) to the dearest Basement conversion £36870 (Barnes Design based in SW17).
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 SW17 by posting a job with HaMuch and we will send it to extension builders in SW17.
Job | Estimate |
Underpinning a house | £17343 |
Build a two storey extension | £87765 |
Build a timber frame extension | £25843 |
Install a swimming pool | £80843 |
Cost to build a single storey extension | £46864 |
Cost to build a side return extension | £35736 |
Install an RSJ | £2043 |
Build an outbuilding | £9843 |
Build a mansard loft conversion | £51843 |
Cost of a loft conversion | £32280 |
Build a kitchen extension | £41843 |
Build a hip to gable loft conversion | £41843 |
Build a granny annexe | £86843 |
Build a garden office | £9843 |
Convert a garage | £15843 |
Build a flat roof extension | £21843 |
Build a dormer loft conversion | £41843 |
Lay a concrete foundation | £6093 |
Convert a bungalow loft | £28843 |
Basement conversion cost | £35736 |