Chelsea two storey extensions from £87,760

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Cost of a two storey extension in Chelsea

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 Chelsea?

Costs range from £87,760 (ADOVA based in SW3) to £88,600 (Klai Construction based in SW7), 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 Chelsea

Estimates for common extension builder jobs in Chelsea;

JobEstimate
Underpinning a house£17,417
Build a two storey extension£87,875
Build a timber frame extension£25,917
Install a swimming pool£80,917
Cost to build a single storey extension£53,336
Cost to build a side return extension£40,564
Install an RSJ£2,117
Build an outbuilding£9,917
Build a mansard loft conversion£51,917
Cost of a loft conversion£32,970
Build a kitchen extension£41,917
Build a hip to gable loft conversion£41,917
Build a granny annexe£86,917
Build a garden office£9,917
Convert a garage£15,917
Build a new garage£18,417
Build a flat roof extension£21,917
Build a dormer loft conversion£41,917
Lay a concrete foundation£6,167
Convert a bungalow loft£28,917
Basement conversion cost£36,564
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Rates for other Chelsea trades

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Two storey extension cost in Chelsea
Estimate Two storey extension cost in Chelsea based on hourly/daily rate (excluding VAT or callout charges)
Business name Two storey extension cost
ADOVA, London, Greater London, SW3 £87,760
Oro Projects, 13 Radnor Walk, London, Greater London, SW3 £87,760
Clarisford, Greater London, SW3 £87,916
Clarisford, London, Greater London, SW3 £87,760
Autas Developments, London, SW1W £87,916
Haus to Home, Greater London, SW3 £87,904
Sloane Ave Renovations, 130 Sloane Street, London, Greater London, SW1X £87,760
Property Refurbishment London, 21 Ellis Street, Sloane Square, London, Greater London, SW1X £87,760
Builders by Design Ltd, Greater London, SW3 £87,904
Hearne House, London, Greater London, SW3 £87,760
ALT CONSTRUCTION, Greater London, SW1W £87,916
Crosshatch, Greater London, SW3 £87,916
Crosshatch, London, Greater London, SW3 £87,760
Ventura Property Developments, Ground Floor Office, 97 Old Brompton Road, London, SW7 £87,760
Hartley Homes, 97 Old Brompton Road, South Kensington, Greater London, SW7 £87,760
Green Inside Limited T/A Dnomyar Interiors, 11 Bute Street, London, Greater London, SW7 £87,916
Knightsbridge Design, Greater London, SW1X £87,916
Klai Construction , London, SW7 £88,600
Monica Davis Property Limited, London, SW10 £87,916
Royale Renovations, Battersea, SW11 £87,820
Eerospace, Londonderry, SW11 £87,904
Luxury Movement, London, Greater London, SW1V £87,760
Cobalt Interiors, London, Greater London, SW7 £87,916
MS Contractor Ltd, Greater London, SW10 £87,916
novospace ltd, Greater London, SW11 £87,904

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