Cost to Build a Single Storey Extension in Harold Hill

Build a single storey extension in Harold Hill from £53,720

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Single storey extension cost in Harold Hill

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

Estimates for single storey extension near Harold Hill

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Estimates for common extension builder jobs in Harold Hill;

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 - £17,648

Two storey extension

Two storey extension - £88,222

Build a timber frame extension

Build a timber frame extension - £26,148

Build a swimming pool

Build a swimming pool - £81,148

Single storey extension

Single storey extension - £57,960

Side return extension

Side return extension - £43,165

Install an RSJ

Install an RSJ - £2,348

Outbuilding

Outbuilding - £10,148

Build a Mansard loft conversion

Build a Mansard loft conversion - £52,148

Loft conversion

Loft conversion - £35,138

Build a kitchen extension

Build a kitchen extension - £42,148

Hip to gable loft conversion

Hip to gable loft conversion - £42,148

Granny annexe

Granny annexe - £87,148

Garden office

Garden office - £10,148

Convert a Garage

Convert a Garage - £16,148

Garage

Garage - £18,648

Build a flat roof extension

Build a flat roof extension - £22,148

Build a dormer loft conversion

Build a dormer loft conversion - £42,148

Concrete foundations

Concrete foundations - £6,398

Convert a bungalow loft

Convert a bungalow loft - £29,148

Convert a basement

Convert a basement - £39,165

More extensions & conversions cost guides...