Cost to Build a Single Storey Extension in Orpington

Build a single storey extension in Orpington from £52,760

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Single storey extension cost in Orpington

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

Estimates for single storey extension near Orpington

"Single storey extension" - BR2, job posted 01/01/70

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Estimates for common extension builder jobs in Orpington;

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 - £17,691

Two storey extension

Two storey extension - £88,287

Build a timber frame extension

Build a timber frame extension - £26,191

Build a swimming pool

Build a swimming pool - £81,191

Single storey extension

Single storey extension - £58,824

Side return extension

Side return extension - £43,651

Install an RSJ

Install an RSJ - £2,391

Outbuilding

Outbuilding - £10,191

Build a Mansard loft conversion

Build a Mansard loft conversion - £52,191

Loft conversion

Loft conversion - £35,543

Build a kitchen extension

Build a kitchen extension - £42,191

Hip to gable loft conversion

Hip to gable loft conversion - £42,191

Granny annexe

Granny annexe - £87,191

Garden office

Garden office - £10,191

Convert a Garage

Convert a Garage - £16,191

Garage

Garage - £18,691

Build a flat roof extension

Build a flat roof extension - £22,191

Build a dormer loft conversion

Build a dormer loft conversion - £42,191

Concrete foundations

Concrete foundations - £6,441

Convert a bungalow loft

Convert a bungalow loft - £29,191

Convert a basement

Convert a basement - £39,651

More extensions & conversions cost guides...