Range from the cheapest single storey extension £43280 (The Fascia Division Limited based in SO50) to the dearest single storey extension £46320 (KT Carpentry & Building Services based in SO16).
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 SO16 by posting a job with HaMuch and we will send it to extension builders in SO16.
09/03/2024
Single storey extension
Job | Estimate |
Underpinning a house | £17230 |
Build a two storey extension | £87594 |
Build a timber frame extension | £25730 |
Install a swimming pool | £80730 |
Cost to build a single storey extension | £44592 |
Cost to build a side return extension | £34458 |
Install an RSJ | £1930 |
Build an outbuilding | £9730 |
Build a mansard loft conversion | £51730 |
Cost of a loft conversion | £31215 |
Build a kitchen extension | £41730 |
Build a hip to gable loft conversion | £41730 |
Build a granny annexe | £86730 |
Build a garden office | £9730 |
Convert a garage | £15730 |
Build a new garage | £18230 |
Build a flat roof extension | £21730 |
Build a dormer loft conversion | £41730 |
Lay a concrete foundation | £5980 |
Convert a bungalow loft | £28730 |
Basement conversion cost | £34458 |