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 £51840 (CleanDay London Ltd based in SW12) to the dearest of around £54000 (Felix Building based in SW16).
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 SW12 by posting a job with HaMuch and we'll send it to extension builders in SW12.
Job | Estimate |
Underpinning a house | £17484 |
Build a two storey extension | £87976 |
Build a timber frame extension | £25984 |
Install a swimming pool | £80984 |
Cost to build a single storey extension | £49674 |
Cost to build a side return extension | £37316 |
Install an RSJ | £2184 |
Build an outbuilding | £9984 |
Build a mansard loft conversion | £51984 |
Cost of a loft conversion | £33597 |
Build a kitchen extension | £41984 |
Build a hip to gable loft conversion | £41984 |
Build a granny annexe | £86984 |
Build a garden office | £9984 |
Convert a garage | £15984 |
Build a new garage | £18484 |
Build a flat roof extension | £21984 |
Build a dormer loft conversion | £41984 |
Lay a concrete foundation | £6234 |
Convert a bungalow loft | £28984 |
Basement conversion cost | £37316 |