Build a mansard loft conversion in London from £50,160

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Mansard loft conversion cost in London

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 £50,160 (London Design And Build based in SW1A) to the dearest of around £51,944 (Adamko Dry Lining London based in WC2N).

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 London by posting a job with HaMuch and we'll send it to extension builders in London. 

Estimates for mansard loft conversion near London

Estimates for common extension builder jobs in London;

JobEstimate
Underpinning a house£17,341
Build a two storey extension£87,761
Build a timber frame extension£25,841
Install a swimming pool£80,841
Cost to build a single storey extension£51,819
Cost to build a side return extension£39,711
Install an RSJ£2,041
Build an outbuilding£9,841
Build a mansard loft conversion£51,841
Cost of a loft conversion£32,259
Build a kitchen extension£41,841
Build a hip to gable loft conversion£41,841
Build a granny annexe£86,841
Build a garden office£9,841
Convert a garage£15,841
Build a new garage£18,341
Build a flat roof extension£21,841
Build a dormer loft conversion£41,841
Lay a concrete foundation£6,091
Convert a bungalow loft£28,841
Basement conversion cost£35,711
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Rates for other London trades

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Mansard loft conversion cost in London
Estimate Mansard loft conversion cost in London based on hourly/daily rate (excluding VAT or callout charges)
Business name Mansard loft conversion cost
Adamko Dry Lining London, Greater London, WC2N £51,944
Elv8 Interiors, Greater London, W1B £51,944
Big Mamma, Greater London, W1F £51,944
London Projects Ltd, 11 Carteret Street, London, Greater London, SW1H £51,848
Gil Construction Ltd, Greater London, WC2H £51,944
Rucco Property, Greater London, WC2H £51,944
House Rendering Ltd, 71-75, Shelton Street, Covent Garden, Greater London, WC2H £51,848
Matstone Projects Limited, Greater London, WC2H £51,944
My Lady Builder, Greater London, WC2H £51,944
My Trusted Builder, London, Greater London, wc2h £51,848
Whitehorse Build London, Greater London, WC2H £51,944
ElleHaus, Greater London, WC2H £51,944
ORO Projects, Greater London, WC2H £51,944
HouseUP, 71-75 Shelton Street, Covent Garden, London, WC2H £51,848
Cornerstone, Greater London, W1F £51,944
Sehem Design, london, W1F £51,944
Mayfair Design, Greater London, W1J £51,944
Luxe Refurbs, 16 Berkeley Street, London, Greater London, W1J £51,840
We Love Build - Three Arches, London, Greater London, W1J £51,840
We Love Build, Greater London, W1J £51,944
London Design And Build , Roehampton, SW1A £50,160
Starfish Properties, 14 Hanover Street, 3rd Floor, London, W1S £51,848
TipTop Joinery & Build, London, Greater London, WC1V £51,848
Infinite CM, Greater London, SE1 £51,936
Elite Building, Greater London, WC2A £51,944

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Location in UKHourly RateDaily Rate
Mansard Loft Conversion near Belgravia£38£237
Mansard Loft Conversion near Lambeth£38£237
Mansard Loft Conversion near Camden Town£38£238
Mansard Loft Conversion near Chelsea£38£238
Mansard Loft Conversion near Islington£39£237
Mansard Loft Conversion near Camberwell£38£237
Mansard Loft Conversion near Kensington£38£238
Mansard Loft Conversion near Bethnal Green£39£236
Mansard Loft Conversion near Hackney£39£237
Mansard Loft Conversion near Fulham£38£238
Mansard Loft Conversion near Hammersmith£38£238
Mansard Loft Conversion near Earlsfield£38£238
Mansard Loft Conversion near Greenwich£38£235
Mansard Loft Conversion near Muswell Hill£38£236
Mansard Loft Conversion near Lewisham£38£236
Mansard Loft Conversion near Wimbledon£37£234
Mansard Loft Conversion near Plaistow£37£234
Mansard Loft Conversion near Brent Cross£37£237
Mansard Loft Conversion near Walthamstow£39£238
Mansard Loft Conversion near Merton£38£236
Mansard Loft Conversion near Ealing£38£237
Mansard Loft Conversion near Redbridge£36£232
Mansard Loft Conversion near Bromley£37£231
Mansard Loft Conversion near Croydon£37£233
Mansard Loft Conversion near Barking£37£228
Mansard Loft Conversion near Kingston Upon Thames£37£235
Mansard Loft Conversion near Sutton£37£234
Mansard Loft Conversion near High Barnet£37£236
Mansard Loft Conversion near Harrow£37£235
Mansard Loft Conversion near Hounslow£37£243
Mansard Loft Conversion near Richmond Upon Thames£37£236
Mansard Loft Conversion near Bexley£36£230
Mansard Loft Conversion near Hillingdon£56£240
Mansard Loft Conversion near Romford£39£236