Cost to Build a Single Storey Extension in High Barnet

Build a single storey extension in High Barnet from £49,240

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Single storey extension cost in High Barnet - Sort by rates or availability

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

Estimates for single storey extension near High Barnet

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Single Storey Extension in High Barnet
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Estimates for common extension builder jobs in High Barnet;

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 - £17,759

Two storey extension

Two storey extension - £88,389

Build a timber frame extension

Build a timber frame extension - £26,259

Build a swimming pool

Build a swimming pool - £81,259

Single storey extension

Single storey extension - £60,184

Side return extension

Side return extension - £44,416

Install an RSJ

Install an RSJ - £2,459

Outbuilding

Outbuilding - £10,259

Build a Mansard loft conversion

Build a Mansard loft conversion - £52,259

Loft conversion

Loft conversion - £36,180

Build a kitchen extension

Build a kitchen extension - £42,259

Hip to gable loft conversion

Hip to gable loft conversion - £42,259

Granny annexe

Granny annexe - £87,259

Garden office

Garden office - £10,259

Convert a Garage

Convert a Garage - £16,259

Garage

Garage - £18,759

Build a flat roof extension

Build a flat roof extension - £22,259

Build a dormer loft conversion

Build a dormer loft conversion - £42,259

Concrete foundations

Concrete foundations - £6,509

Convert a bungalow loft

Convert a bungalow loft - £29,259

Convert a basement

Convert a basement - £40,416

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