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 (Steve Knight Construction based in HP15) to the dearest of around £52240 (OLI HOME IMPROVEMENTS based in SL9).
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 HP9 by posting a job with HaMuch and we'll send it to extension builders in HP9.
Job | Estimate |
Underpinning a house | £17424 |
Build a two storey extension | £87887 |
Build a timber frame extension | £25924 |
Install a swimming pool | £80924 |
Cost to build a single storey extension | £48490 |
Cost to build a side return extension | £36650 |
Install an RSJ | £2124 |
Build an outbuilding | £9924 |
Build a mansard loft conversion | £51924 |
Cost of a loft conversion | £33042 |
Build a kitchen extension | £41924 |
Build a hip to gable loft conversion | £41924 |
Build a granny annexe | £86924 |
Build a garden office | £9924 |
Convert a garage | £15924 |
Build a new garage | £18424 |
Build a flat roof extension | £21924 |
Build a dormer loft conversion | £41924 |
Lay a concrete foundation | £6174 |
Convert a bungalow loft | £28924 |
Basement conversion cost | £36650 |