Range from the cheapest single storey extension £46960 (Capital Construction ltd based in N1) to the dearest single storey extension £50000 (Masters Construction UK based in NW1).
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 N1c by posting a job with HaMuch and we will send it to extension builders in N1c.
Job | Estimate |
Underpinning a house | £17430 |
Build a two storey extension | £87895 |
Build a timber frame extension | £25930 |
Install a swimming pool | £80930 |
Cost to build a single storey extension | £48605 |
Cost to build a side return extension | £36715 |
Install an RSJ | £2130 |
Build an outbuilding | £9930 |
Build a mansard loft conversion | £51930 |
Cost of a loft conversion | £33096 |
Build a kitchen extension | £41930 |
Build a hip to gable loft conversion | £41930 |
Build a granny annexe | £86930 |
Build a garden office | £9930 |
Convert a garage | £15930 |
Build a new garage | £18430 |
Build a flat roof extension | £21930 |
Build a dormer loft conversion | £41930 |
Lay a concrete foundation | £6180 |
Convert a bungalow loft | £28930 |
Basement conversion cost | £36715 |