N1c two storey extensions from £87,772

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Cost of a two storey extension in N1c

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 N1c?

Costs range from £87,772 (Facit Homes based in N1) to £88,000 (Masters Construction UK based in NW1), 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 N1c

Estimates for common extension builder jobs in N1c;

JobEstimate
Underpinning a house£17,432
Build a two storey extension£87,897
Build a timber frame extension£25,932
Install a swimming pool£80,932
Cost to build a single storey extension£53,630
Cost to build a side return extension£40,730
Install an RSJ£2,132
Build an outbuilding£9,932
Build a mansard loft conversion£51,932
Cost of a loft conversion£33,108
Build a kitchen extension£41,932
Build a hip to gable loft conversion£41,932
Build a granny annexe£86,932
Build a garden office£9,932
Convert a garage£15,932
Build a new garage£18,432
Build a flat roof extension£21,932
Build a dormer loft conversion£41,932
Lay a concrete foundation£6,182
Convert a bungalow loft£28,932
Basement conversion cost£36,730
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Rates for other N1c trades

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Two storey extension cost in N1c
Estimate Two storey extension cost in N1c based on hourly/daily rate (excluding VAT or callout charges)
Business name Two storey extension cost
Atelier Design & Build, Greater London, N1 £87,916
Murphy London Ltd, Greater London, N1 £87,916
Smith Morgan, Greater London, N1 £87,916
Vision Construct, Greater London, N1 £87,916
Cavendish Builds, Greater London, N1 £87,916
DeHome Studio, Greater London, N1 £87,916
Masters Construction UK, London, NW1 £88,000
NARCH Ltd, Greater London, WC1H £87,916
GD CONSTRUCTION, London, WC1X £88,000
KRIER DESIGN, Greater London, NW1 £87,916
McCracken Consult & Construct, Greater London, NW1 £87,916
UR Interior, Greater London, NW1 £87,916
Minton Builders LTD, Greater London, N1 £87,916
Buildwiser, King's Cross, WC1X £87,796
Citygate, London, WC1H £87,916
Gordon Construction, Cambridgeshire, N1 £87,916
Crowngate Construction, Warwickshire, N1 £87,916
Rabjohn Construction Ltd, South Yorkshire, N1 £87,916
Novo London Design and Build, Greater London, N1 £87,916
Centaurus Construction Limited, Greater London, N1 £87,916
Cedar Developments, West Lothian, N1 £87,916
Facit Homes, 3A Godson Street, London, Greater London, N1 £87,772
Square Foot Basements Ltd, London, Greater London, NW1 £87,772
CMT Ltd, Islington, N1 £87,832
Nucleus Design Studio, The Basement, 324 Liverpool Road, London, N7 £87,772

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