Mansard loft conversions are ideal if you want to maximise the space in your home. Extending your roof out into a flat roof with an almost vertical wall, they almost always require planning permission but can add significant value to your home.
Mansard loft conversions range from the cheapest installation of £51832 (Firtree Building Services Ltd based in EN1) to the dearest of around £52800 (Acme Lofts & Extensions based in EN2).
While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.
Get quotes to install a mansard loft conversion in Botany Bay by posting a job with HaMuch and we'll send it to extension builders in Botany Bay.
Job | Estimate |
Underpinning a house | £17438 |
Build a two storey extension | £87907 |
Build a timber frame extension | £25938 |
Install a swimming pool | £80938 |
Cost to build a single storey extension | £48765 |
Cost to build a side return extension | £36805 |
Install an RSJ | £2138 |
Build an outbuilding | £9938 |
Build a mansard loft conversion | £51938 |
Cost of a loft conversion | £33171 |
Build a kitchen extension | £41938 |
Build a hip to gable loft conversion | £41938 |
Build a granny annexe | £86938 |
Build a garden office | £9938 |
Convert a garage | £15938 |
Build a new garage | £18438 |
Build a flat roof extension | £21938 |
Build a dormer loft conversion | £41938 |
Lay a concrete foundation | £6188 |
Convert a bungalow loft | £28938 |
Basement conversion cost | £36805 |