Build a single storey extension in SW1Y from £18,200

HaMuch is Excellent
Trustpilot

Extension builder estimates (based on hourly rates) to build a single storey extension in SW1Y

Range from the cheapest single storey extension £18,200 (London Design And Build based in SW1A) to the dearest single storey extension £53,880 (Elv8 Interiors based in W1B).
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 SW1Y by posting a job with HaMuch and we will send it to extension builders in SW1Y.

Estimates for single storey extension near SW1Y

Estimates for common extension builder jobs in SW1Y;

JobEstimate
Underpinning a house£17,327
Build a two storey extension£87,740
Build a timber frame extension£25,827
Install a swimming pool£80,827
Cost to build a single storey extension£51,538
Cost to build a side return extension£39,552
Install an RSJ£2,027
Build an outbuilding£9,827
Build a mansard loft conversion£51,827
Cost of a loft conversion£32,127
Build a kitchen extension£41,827
Build a hip to gable loft conversion£41,827
Build a granny annexe£86,827
Build a garden office£9,827
Convert a garage£15,827
Build a new garage£18,327
Build a flat roof extension£21,827
Build a dormer loft conversion£41,827
Lay a concrete foundation£6,077
Convert a bungalow loft£28,827
Basement conversion cost£35,552
2. Enter postcode to get estimate
plus materials

to see who is available and get more information


Rates for other SW1Y 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 SW1Y
Estimate Single storey extension cost in SW1Y based on hourly/daily rate (excluding VAT or callout charges)
Business name Single storey extension cost
London Projects Ltd, 11 Carteret Street, London, Greater London, SW1H £51,960
Elv8 Interiors, Greater London, W1B £53,880
Adamko Dry Lining London, Greater London, WC2N £53,880
Mayfair Design, Greater London, W1J £53,880
London Design And Build , Roehampton, SW1A £18,200
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
Big Mamma, Greater London, W1F £53,880
Cornerstone, Greater London, W1F £53,880
Sehem Design, london, W1F £53,880
The Maybria Group, Mayfair, Greater London, W1J £51,960
Future Homes Design and Build, 4 Old Park Lane, Mayfair, London, W1K £51,960
Starfish Properties, 14 Hanover Street, 3rd Floor, London, W1S £51,960
Pillar Contractors Ltd, 49 Grosvenor Street, Mayfair, London, Greater London, W1K £51,800
Dominic Payte - Design & Build, 14 Hanover Square, Mayfair, Greater London, W1S £51,960
A to Z Builders Ltd, Houses of Parliament, SW1P £52,600
Matstone Projects Limited, Greater London, WC2H £53,880
House Rendering Ltd, 71-75, Shelton Street, Covent Garden, Greater London, WC2H £51,960
My Lady Builder, Greater London, WC2H £53,880
Whitehorse Build London, Greater London, WC2H £53,880
ElleHaus, Greater London, WC2H £53,880
Gil Construction Ltd, Greater London, WC2H £53,880
My Trusted Builder, London, Greater London, wc2h £51,960
HouseUP, 71-75 Shelton Street, Covent Garden, London, WC2H £51,960

Get extension builder rates instantly

Get extension builder rates instantly
Borough in London
Single Storey Extension in St James's
Single Storey Extension in Whitehall
Single Storey Extension in Piccadilly
Single Storey Extension in Charring Cross
Single Storey Extension in Savile Row
Single Storey Extension in Buckingham Gate
Single Storey Extension in Soho
Single Storey Extension in China Town
Single Storey Extension in Victoria Station
Single Storey Extension in Regent Street