Cost to Build a Single Storey Extension in EN5

Build a single storey extension in EN5 from £49,240

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Single storey extension cost in EN5

Extension builder estimates (based on hourly rates) to build a single storey extension in EN5

Estimates for single storey extension near EN5

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Borough in London
Single Storey Extension in High Barnet
Single Storey Extension in Cockfosters
Single Storey Extension in Whetstone
Single Storey Extension in North Finchley
Single Storey Extension in Mill Hill
Single Storey Extension in Southgate
Single Storey Extension in Finchley
Single Storey Extension in Friern Barnet
Single Storey Extension in Borehamwood
Single Storey Extension in Potters Bar

Estimates for common extension builder jobs in EN5;

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 - £17,600

Two storey extension

Two storey extension - £88,150

Build a timber frame extension

Build a timber frame extension - £26,100

Build a swimming pool

Build a swimming pool - £81,100

Single storey extension

Single storey extension - £57,000

Side return extension

Side return extension - £42,625

Install an RSJ

Install an RSJ - £2,300

Outbuilding

Outbuilding - £10,100

Build a Mansard loft conversion

Build a Mansard loft conversion - £52,100

Loft conversion

Loft conversion - £34,688

Build a kitchen extension

Build a kitchen extension - £42,100

Hip to gable loft conversion

Hip to gable loft conversion - £42,100

Granny annexe

Granny annexe - £87,100

Garden office

Garden office - £10,100

Convert a Garage

Convert a Garage - £16,100

Garage

Garage - £18,600

Build a flat roof extension

Build a flat roof extension - £22,100

Build a dormer loft conversion

Build a dormer loft conversion - £42,100

Concrete foundations

Concrete foundations - £6,350

Convert a bungalow loft

Convert a bungalow loft - £29,100

Convert a basement

Convert a basement - £38,625

More extensions & conversions cost guides...