Build a single storey extension in London from £18,200

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

Range from the cheapest single storey extension £18,200 (London Design And Build based in SW1A) to the dearest single storey extension £53,880 (Adamko Dry Lining London based in WC2N).
Comparing extension builders estimates for fitting a downstairs toilet gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to build a single storey extension in London by posting a job with HaMuch and we will send it to extension builders in London.

Estimates for single storey extension near London

Estimates for common extension builder jobs in London;

JobEstimate
Underpinning a house£17,337
Build a two storey extension£87,756
Build a timber frame extension£25,837
Install a swimming pool£80,837
Cost to build a single storey extension£51,742
Cost to build a side return extension£39,668
Install an RSJ£2,037
Build an outbuilding£9,837
Build a mansard loft conversion£51,837
Cost of a loft conversion£32,223
Build a kitchen extension£41,837
Build a hip to gable loft conversion£41,837
Build a granny annexe£86,837
Build a garden office£9,837
Convert a garage£15,837
Build a new garage£18,337
Build a flat roof extension£21,837
Build a dormer loft conversion£41,837
Lay a concrete foundation£6,087
Convert a bungalow loft£28,837
Basement conversion cost£35,668
2. Enter postcode to get estimate
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Rates for other London trades

Appliance Repair Specialist
Bathroom Fitter
Builder
Carpenter and Joiner
Cleaner
Conservatory Specialist
Door Fitter
Drain Specialist
Driveway Specialist
Electrician
Extension Builder
Fencer
Fire and Security Specialist
Flooring Specialist
Gardener
Handyman
Heating Engineer
Kitchen Fitter
Landscaper
Painter and Decorator
Patio and Path Specialist
Plasterer
Plumber
Removals and Storage
Roofer
Tiler
Window Fitter
Single storey extension cost in London
Estimate Single storey extension cost in London based on hourly/daily rate (excluding VAT or callout charges)
Business name Single storey extension cost
Adamko Dry Lining London, Greater London, WC2N £53,880
Elv8 Interiors, Greater London, W1B £53,880
Big Mamma, Greater London, W1F £53,880
London Projects Ltd, 11 Carteret Street, London, Greater London, SW1H £51,960
Gil Construction Ltd, Greater London, WC2H £53,880
Rucco Property, Greater London, WC2H £53,880
House Rendering Ltd, 71-75, Shelton Street, Covent Garden, Greater London, WC2H £51,960
Matstone Projects Limited, Greater London, WC2H £53,880
My Lady Builder, Greater London, WC2H £53,880
My Trusted Builder, London, Greater London, wc2h £51,960
Whitehorse Build London, Greater London, WC2H £53,880
HouseUP, 71-75 Shelton Street, Covent Garden, London, WC2H £51,960
ElleHaus, Greater London, WC2H £53,880
ORO Projects, Greater London, WC2H £53,880
Cornerstone, Greater London, W1F £53,880
Sehem Design, london, W1F £53,880
Mayfair Design, Greater London, W1J £53,880
Luxe Refurbs, 16 Berkeley Street, London, Greater London, W1J £51,800
We Love Build - Three Arches, London, Greater London, W1J £51,800
We Love Build, Greater London, W1J £53,880
London Design And Build , Roehampton, SW1A £18,200
Starfish Properties, 14 Hanover Street, 3rd Floor, London, W1S £51,960
TipTop Joinery & Build, London, Greater London, WC1V £51,960
Infinite CM, Greater London, SE1 £53,720
Elite Building, 7 Bell Yard, London, Greater London, WC2A £51,960

Get extension builder rates instantly

Get extension builder rates instantly
Location in UKHourly RateDaily Rate
Single Storey Extension near Belgravia£38£237
Single Storey Extension near Lambeth£38£237
Single Storey Extension near Camden Town£38£238
Single Storey Extension near Chelsea£38£238
Single Storey Extension near Islington£39£237
Single Storey Extension near Camberwell£38£237
Single Storey Extension near Kensington£38£238
Single Storey Extension near Bethnal Green£39£236
Single Storey Extension near Hackney£39£237
Single Storey Extension near Fulham£38£238
Single Storey Extension near Hammersmith£38£238
Single Storey Extension near Earlsfield£38£238
Single Storey Extension near Greenwich£38£235
Single Storey Extension near Muswell Hill£38£236
Single Storey Extension near Lewisham£38£236
Single Storey Extension near Wimbledon£37£234
Single Storey Extension near Plaistow£37£234
Single Storey Extension near Brent Cross£37£237
Single Storey Extension near Walthamstow£39£238
Single Storey Extension near Merton£38£236
Single Storey Extension near Ealing£38£237
Single Storey Extension near Redbridge£36£232
Single Storey Extension near Bromley£37£231
Single Storey Extension near Croydon£37£233
Single Storey Extension near Barking£37£228
Single Storey Extension near Kingston Upon Thames£37£235
Single Storey Extension near Sutton£37£234
Single Storey Extension near High Barnet£37£236
Single Storey Extension near Harrow£37£235
Single Storey Extension near Hounslow£37£243
Single Storey Extension near Richmond Upon Thames£37£236
Single Storey Extension near Bexley£36£230
Single Storey Extension near Hillingdon£56£240
Single Storey Extension near Romford£39£236