Range from the cheapest single storey extension £35600 (M N HALL PROPERTY MAINTENANCE based in BS7) to the dearest single storey extension £54800 (JM Building Services based in BS4).
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 BS99 by posting a job with HaMuch and we will send it to extension builders in BS99.
Job | Estimate |
Underpinning a house | £17277 |
Build a two storey extension | £87665 |
Build a timber frame extension | £25777 |
Install a swimming pool | £80777 |
Cost to build a single storey extension | £45533 |
Cost to build a side return extension | £34987 |
Install an RSJ | £1977 |
Build an outbuilding | £9777 |
Build a mansard loft conversion | £51777 |
Cost of a loft conversion | £31656 |
Build a kitchen extension | £41777 |
Build a hip to gable loft conversion | £41777 |
Build a granny annexe | £86777 |
Build a garden office | £9777 |
Convert a garage | £15777 |
Build a new garage | £18277 |
Build a flat roof extension | £21777 |
Build a dormer loft conversion | £41777 |
Lay a concrete foundation | £6027 |
Convert a bungalow loft | £28777 |
Basement conversion cost | £34987 |