W1B two storey extensions from £87,760

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Cost of a two storey extension in W1B

A two storey extension is a great way to add extra space to your home, adding value to your property. But how much does it cost to build a double storey extension in W1B?

Costs range from £87,760 (We Love Build - Three Arches based in W1J) to £87,916 (Sehem Design based in W1F), but these are just estimates. The best way to compare costs is to get real quotes from real builders.

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Estimates for two storey extension near W1B

Estimates for common extension builder jobs in W1B;

JobEstimate
Underpinning a house£17,406
Build a two storey extension£87,859
Build a timber frame extension£25,906
Install a swimming pool£80,906
Cost to build a single storey extension£53,125
Cost to build a side return extension£40,445
Install an RSJ£2,106
Build an outbuilding£9,906
Build a mansard loft conversion£51,906
Cost of a loft conversion£32,871
Build a kitchen extension£41,906
Build a hip to gable loft conversion£41,906
Build a granny annexe£86,906
Build a garden office£9,906
Convert a garage£15,906
Build a new garage£18,406
Build a flat roof extension£21,906
Build a dormer loft conversion£41,906
Lay a concrete foundation£6,156
Convert a bungalow loft£28,906
Basement conversion cost£36,445
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Two storey extension cost in W1B
Estimate Two storey extension cost in W1B based on hourly/daily rate (excluding VAT or callout charges)
Business name Two storey extension cost
Sehem Design, london, W1F £87,916
Cornerstone, Greater London, W1F £87,916
Starfish Properties, 14 Hanover Street, 3rd Floor, London, W1S £87,772
Big Mamma, Greater London, W1F £87,916
Dominic Payte - Design & Build, 14 Hanover Square, Mayfair, Greater London, W1S £87,772
Elv8 Interiors, Greater London, W1B £87,916
CORRECTBUILDIV.LTD, Greater London, W1B £87,916
Guildon LTD, Greater London, w1b £87,916
Hestia Contractors Ltd, 207 Regent Street, London, Greater London, W1B £87,772
We Love Build, Greater London, W1J £87,916
Capatus properties ltd, Greater London, W1W £87,916
Italian Soft Leather Purses, Greater London, W1W £87,916
Design 2000 UK Ltd, Greater London, W1W £87,916
Teammax LTD, 85 Great Portland Street, London, Greater London, W1W £87,772
KBB Master Builder LTD, Greater London, W1W £87,916
Grand Phase Ltd, 85 Great Portland Street, London, Greater London, W1W £87,772
JAY Executinos LTD, London, W1W £87,916
UCS UK Ltd, Greater London, W1W £87,916
Eternal Solutions, Greater London, W1W £87,916
KBB Master Builder Ltd, Greater London, W1W £87,916
JK Doors, Fitzrovia, W1W £87,832
We Love Build - Three Arches, London, Greater London, W1J £87,760
Luxe Refurbs, 16 Berkeley Street, London, Greater London, W1J £87,760
Pillar Contractors Ltd, 49 Grosvenor Street, Mayfair, London, Greater London, W1K £87,760
Atlant Construction, London, Greater London, W1T £87,772

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