Range from the cheapest single storey extension £31440 (Extended living by Gilbert-Ash based in BT12) to the dearest single storey extension £40080 (Terry Design based in BT62).
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 Derryadd by posting a job with HaMuch and we will send it to extension builders in Derryadd.
Job | Estimate |
Underpinning a house | £16639 |
Build a two storey extension | £86708 |
Build a timber frame extension | £25139 |
Install a swimming pool | £80139 |
Cost to build a single storey extension | £32778 |
Cost to build a side return extension | £27812 |
Install an RSJ | £1339 |
Build an outbuilding | £9139 |
Build a mansard loft conversion | £51139 |
Cost of a loft conversion | £25677 |
Build a kitchen extension | £41139 |
Build a hip to gable loft conversion | £41139 |
Build a granny annexe | £86139 |
Build a garden office | £9139 |
Convert a garage | £15139 |
Build a new garage | £17639 |
Build a flat roof extension | £21139 |
Build a dormer loft conversion | £41139 |
Lay a concrete foundation | £5389 |
Convert a bungalow loft | £28139 |
Basement conversion cost | £27812 |