Cost to Build a Single Storey Extension in W1W

Build a single storey extension in W1W from £54,680

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Single storey extension cost in W1W

Extension builder estimates (based on hourly rates) to build a single storey extension in W1W

Estimates for single storey extension near W1W

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Borough in London
Single Storey Extension in Fitzrovia
Single Storey Extension in Tottenham Court Road
Single Storey Extension in Harley Street
Single Storey Extension in University College London
Single Storey Extension in City of Westminster
Single Storey Extension in Regent Street
Single Storey Extension in Paddington
Single Storey Extension in Soho
Single Storey Extension in Oxford Street
Single Storey Extension in China Town

Estimates for common extension builder jobs in W1W;

Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building

Underpin a building - £17,758

Two storey extension

Two storey extension - £88,388

Build a timber frame extension

Build a timber frame extension - £26,258

Build a swimming pool

Build a swimming pool - £81,258

Single storey extension

Single storey extension - £60,168

Side return extension

Side return extension - £44,407

Install an RSJ

Install an RSJ - £2,458

Outbuilding

Outbuilding - £10,258

Build a Mansard loft conversion

Build a Mansard loft conversion - £52,258

Loft conversion

Loft conversion - £36,173

Build a kitchen extension

Build a kitchen extension - £42,258

Hip to gable loft conversion

Hip to gable loft conversion - £42,258

Granny annexe

Granny annexe - £87,258

Garden office

Garden office - £10,258

Convert a Garage

Convert a Garage - £16,258

Garage

Garage - £18,758

Build a flat roof extension

Build a flat roof extension - £22,258

Build a dormer loft conversion

Build a dormer loft conversion - £42,258

Concrete foundations

Concrete foundations - £6,508

Convert a bungalow loft

Convert a bungalow loft - £29,258

Convert a basement

Convert a basement - £40,407

More extensions & conversions cost guides...