Range from the cheapest single storey extension £42000 (KUDOS BUILDING LTD based in BN17) to the dearest single storey extension £46160 (Haynes & Scott Developments based in BN17).
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 West Sussex by posting a job with HaMuch and we will send it to extension builders in West Sussex.
Job | Estimate |
Underpinning a house | £17248 |
Build a two storey extension | £87622 |
Build a timber frame extension | £25748 |
Install a swimming pool | £80748 |
Cost to build a single storey extension | £44963 |
Cost to build a side return extension | £34667 |
Install an RSJ | £1948 |
Build an outbuilding | £9748 |
Build a mansard loft conversion | £51748 |
Cost of a loft conversion | £31389 |
Build a kitchen extension | £41748 |
Build a hip to gable loft conversion | £41748 |
Build a granny annexe | £86748 |
Build a garden office | £9748 |
Convert a garage | £15748 |
Build a new garage | £18248 |
Build a flat roof extension | £21748 |
Build a dormer loft conversion | £41748 |
Lay a concrete foundation | £5998 |
Convert a bungalow loft | £28748 |
Basement conversion cost | £34667 |