Cost of a two storey extension in W1

W1 two storey extensions from £87,760

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Cost of a two storey extension in W1
Two storey extension cost in W1
Estimates for common extension builder jobs in W1;

Cost of a two storey extension in W1

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 W1?

Costs range from £87,760 (Pillar Contractors Ltd based in W1K) to £87,916 (CORRECTBUILDIV.LTD based in W1B), 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 W1

Estimates for common extension builder jobs in W1;

Rates for other W1 trades

Two storey extension cost in W1

Estimate Two storey extension cost in W1 based on hourly/daily rate (excluding VAT or callout charges)
Business name	Two storey extension cost
Starfish Properties, 14 Hanover Street, 3rd Floor, London, W1S	£87,772
Dominic Payte - Design & Build, 14 Hanover Square, Mayfair, Greater London, W1S	£87,772
CORRECTBUILDIV.LTD, Greater London, W1B	£87,916
Hestia Contractors Ltd, 207 Regent Street, London, Greater London, W1B	£87,772
Guildon LTD, Greater London, w1b	£87,916
Sehem Design, london, W1F	£87,916
Cornerstone, Greater London, W1F	£87,916
UCS UK Ltd, Greater London, W1W	£87,916
JK Doors, Fitzrovia, W1W	£87,832
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
Grand Phase Ltd, 85 Great Portland Street, London, Greater London, W1W	£87,772
JAY Executinos LTD, London, W1W	£87,916
KBB Master Builder LTD, Greater London, W1W	£87,916
Eternal Solutions, Greater London, W1W	£87,916
KBB Master Builder Ltd, Greater London, W1W	£87,916
Big Mamma, Greater London, W1F	£87,916
Pillar Contractors Ltd, 49 Grosvenor Street, Mayfair, London, Greater London, W1K	£87,760
Elv8 Interiors, Greater London, W1B	£87,916
We Love Build, Greater London, W1J	£87,916
We Love Build - Three Arches, London, Greater London, W1J	£87,760
Luxe Refurbs, 16 Berkeley Street, London, Greater London, W1J	£87,760
Atlant Construction, London, Greater London, W1T	£87,772

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Borough in London
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	Job	Estimate
	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