Range from the cheapest single storey extension £21200 (Clean Lawn Cut & Landscape based in KA7) to the dearest single storey extension £67600 (D Howatson Building & Landscaping Services based in KA30).
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 KA12 by posting a job with HaMuch and we will send it to extension builders in KA12.
Job | Estimate |
Underpinning a house | £17164 |
Build a two storey extension | £87496 |
Build a timber frame extension | £25664 |
Install a swimming pool | £80664 |
Cost to build a single storey extension | £43280 |
Cost to build a side return extension | £33720 |
Install an RSJ | £1864 |
Build an outbuilding | £9664 |
Build a mansard loft conversion | £51664 |
Cost of a loft conversion | £30600 |
Build a kitchen extension | £41664 |
Build a hip to gable loft conversion | £41664 |
Build a granny annexe | £86664 |
Build a garden office | £9664 |
Convert a garage | £15664 |
Build a new garage | £18164 |
Build a flat roof extension | £21664 |
Build a dormer loft conversion | £41664 |
Lay a concrete foundation | £5914 |
Convert a bungalow loft | £28664 |
Basement conversion cost | £33720 |