Cost to Build a Single Storey Extension in SW1A

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Build a single storey extension in SW1A from £19,160

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Single storey extension cost in SW1A

Extension builder estimates (based on hourly rates) to build a single storey extension in SW1A

Estimates for single storey extension near SW1A

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Borough in London
Single Storey Extension in Whitehall
Single Storey Extension in St James's
Single Storey Extension in Buckingham Gate
Single Storey Extension in Victoria Station
Single Storey Extension in Houses of Parliament
Single Storey Extension in Charring Cross
Single Storey Extension in Belgravia
Single Storey Extension in Piccadilly
Single Storey Extension in Savile Row
Single Storey Extension in Soho

Estimates for common extension builder jobs in SW1A;

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 - £17,508

Two storey extension

Two storey extension - £88,012

Build a timber frame extension

Build a timber frame extension - £26,008

Build a swimming pool

Build a swimming pool - £81,008

Single storey extension

Single storey extension - £55,160

Side return extension

Side return extension - £41,590

Install an RSJ

Install an RSJ - £2,208

Outbuilding

Outbuilding - £10,008

Build a Mansard loft conversion

Build a Mansard loft conversion - £52,008

Loft conversion

Loft conversion - £33,825

Build a kitchen extension

Build a kitchen extension - £42,008

Hip to gable loft conversion

Hip to gable loft conversion - £42,008

Granny annexe

Granny annexe - £87,008

Garden office

Garden office - £10,008

Convert a Garage

Convert a Garage - £16,008

Garage

Garage - £18,508

Build a flat roof extension

Build a flat roof extension - £22,008

Build a dormer loft conversion

Build a dormer loft conversion - £42,008

Concrete foundations

Concrete foundations - £6,258

Convert a bungalow loft

Convert a bungalow loft - £29,008

Convert a basement

Convert a basement - £37,590

More extensions & conversions cost guides...