Cost to build a flat roof extension in Somerset House

Flat roof extension cost in Somerset House

A flat roof extension is a great way to add extra space to your home without splashing out on the costs of a pitched roof extension. Often exempt from planning permission rules, you can build a flat roof extension up to 3 metres in height as long as it's not visible from a road. But how much do they cost in Somerset House?

A flat roof extension ranges from the cheapest of £21,848 (My Trusted Builder based in wc2h) to the dearest of £21,944 (Whitehorse Build London based in WC2H), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.

Find out how much your flat roof extension will cost in Somerset House by posting a job with HaMuch. We'll send it to extension builders in Somerset House.

Estimates for flat roof extension near Somerset House

How much does a flat roof extension cost?
Flat roof extension cost per m2
Factors affecting the cost of flat roof extensions
Advantages and disadvantages of flat roofs
Which is cheaper: a flat roof or pitched roof?
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Do you need planning permission for a flat roof extension?
How long does a flat roof last?
Can you walk on a flat roof extension?
What insulation do I need for a flat roof extension?

	Job	Estimate
	Underpinning a house	£17,397
	Build a two storey extension	£87,845
	Build a timber frame extension	£25,897
	Install a swimming pool	£80,897
	Cost to build a single storey extension	£52,939
	Cost to build a side return extension	£40,341
	Install an RSJ	£2,097
	Build an outbuilding	£9,897
	Build a mansard loft conversion	£51,897
	Cost of a loft conversion	£32,784
	Build a kitchen extension	£41,897
	Build a hip to gable loft conversion	£41,897
	Build a granny annexe	£86,897
	Build a garden office	£9,897
	Convert a garage	£15,897
	Build a new garage	£18,397
	Build a flat roof extension	£21,897
	Build a dormer loft conversion	£41,897
	Lay a concrete foundation	£6,147
	Convert a bungalow loft	£28,897
	Basement conversion cost	£36,341

Business name	Flat roof extension cost
Whitehorse Build London, Greater London, WC2H	£21,944
ElleHaus, Greater London, WC2H	£21,944
ORO Projects, Greater London, WC2H	£21,944
My Lady Builder, Greater London, WC2H	£21,944
Matstone Projects Limited, Greater London, WC2H	£21,944
My Trusted Builder, London, Greater London, wc2h	£21,848
HouseUP, 71-75 Shelton Street, Covent Garden, London, WC2H	£21,848
Gil Construction Ltd, Greater London, WC2H	£21,944
Rucco Property, Greater London, WC2H	£21,944
House Rendering Ltd, 71-75, Shelton Street, Covent Garden, Greater London, WC2H	£21,848
Adamko Dry Lining London, Greater London, WC2N	£21,944
Elite Building, 7 Bell Yard, London, Greater London, WC2A	£21,848
Elite Building, Greater London, WC2A	£21,944
TipTop Joinery & Build, London, Greater London, WC1V	£21,848
Infinite CM, Greater London, SE1	£21,936
SDL PKB, 107 - 111 Fleet street - London -, London, Ec4a	£21,848
CK Constructions & Development Ltd, Russell Square, WC1N	£21,888
FLAVIA CONDE, 27 Old Gloucester Street, London, Greater London, WC1N	£21,848
Longland Construction, Greater London, WC1N	£21,944
Pacho Build Ltd, 27 Old Gloucester Street, London, Greater London, wc1n	£21,848
Otto & Mensah Build, 15 Lambs Conduit Street, London, WC1N	£21,848
Big Mamma, Greater London, W1F	£21,944
SCANDIIN, International House 24 Holborn Viaduct, London, Greater London, EC1A	£21,848
JM Building Services, Hatton Garden, EC1N	£21,888
Flow Property Services, London, Greater London, EC4M	£21,848

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Flat roof extension cost in Somerset House

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Flat roof extension cost in Somerset House

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