Cost to Build a Single Storey Extension in KT18

Build a single storey extension in KT18 from £46,200

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Single storey extension cost in KT18

Extension builder estimates (based on hourly rates) to build a single storey extension in KT18

Estimates for single storey extension near KT18

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Borough in London
Single Storey Extension in Epsom
Single Storey Extension in Leatherhead
Single Storey Extension in Stoneleigh
Single Storey Extension in Horton
Single Storey Extension in Tadworth
Single Storey Extension in Banstead
Single Storey Extension in Oxshott
Single Storey Extension in Chessington
Single Storey Extension in Belmont
Single Storey Extension in North Cheam

Estimates for common extension builder jobs in KT18;

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 - £17,582

Two storey extension

Two storey extension - £88,122

Build a timber frame extension

Build a timber frame extension - £26,082

Build a swimming pool

Build a swimming pool - £81,082

Single storey extension

Single storey extension - £56,632

Side return extension

Side return extension - £42,418

Install an RSJ

Install an RSJ - £2,282

Outbuilding

Outbuilding - £10,082

Build a Mansard loft conversion

Build a Mansard loft conversion - £52,082

Loft conversion

Loft conversion - £34,515

Build a kitchen extension

Build a kitchen extension - £42,082

Hip to gable loft conversion

Hip to gable loft conversion - £42,082

Granny annexe

Granny annexe - £87,082

Garden office

Garden office - £10,082

Convert a Garage

Convert a Garage - £16,082

Garage

Garage - £18,582

Build a flat roof extension

Build a flat roof extension - £22,082

Build a dormer loft conversion

Build a dormer loft conversion - £42,082

Concrete foundations

Concrete foundations - £6,332

Convert a bungalow loft

Convert a bungalow loft - £29,082

Convert a basement

Convert a basement - £38,418

More extensions & conversions cost guides...