Cost to build a flat roof extension in New Oxford Street

Flat roof extension cost in New Oxford Street

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 New Oxford Street?

A flat roof extension ranges from the cheapest of £21,848 (House Rendering Ltd based in WC2H) to the dearest of £21,944 (Rucco Property 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 New Oxford Street by posting a job with HaMuch. We'll send it to extension builders in New Oxford Street.

Estimates for flat roof extension near New Oxford Street

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
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	Job	Estimate
	Underpinning a house	£17,405
	Build a two storey extension	£87,857
	Build a timber frame extension	£25,905
	Install a swimming pool	£80,905
	Cost to build a single storey extension	£53,099
	Cost to build a side return extension	£40,431
	Install an RSJ	£2,105
	Build an outbuilding	£9,905
	Build a mansard loft conversion	£51,905
	Cost of a loft conversion	£32,859
	Build a kitchen extension	£41,905
	Build a hip to gable loft conversion	£41,905
	Build a granny annexe	£86,905
	Build a garden office	£9,905
	Convert a garage	£15,905
	Build a new garage	£18,405
	Build a flat roof extension	£21,905
	Build a dormer loft conversion	£41,905
	Lay a concrete foundation	£6,155
	Convert a bungalow loft	£28,905
	Basement conversion cost	£36,431

Business name	Flat roof extension cost
House Rendering Ltd, 71-75, Shelton Street, Covent Garden, Greater London, WC2H	£21,848
Rucco Property, Greater London, WC2H	£21,944
My Lady Builder, Greater London, WC2H	£21,944
My Trusted Builder, London, Greater London, wc2h	£21,848
Whitehorse Build London, Greater London, WC2H	£21,944
HouseUP, 71-75 Shelton Street, Covent Garden, London, WC2H	£21,848
ElleHaus, Greater London, WC2H	£21,944
Matstone Projects Limited, Greater London, WC2H	£21,944
ORO Projects, Greater London, WC2H	£21,944
Gil Construction Ltd, Greater London, WC2H	£21,944
TipTop Joinery & Build, London, Greater London, WC1V	£21,848
Longland Construction, Greater London, WC1N	£21,944
CK Constructions & Development Ltd, Russell Square, WC1N	£21,888
FLAVIA CONDE, 27 Old Gloucester Street, London, Greater London, WC1N	£21,848
Pacho Build Ltd, 27 Old Gloucester Street, London, Greater London, wc1n	£21,848
Otto & Mensah Build, 15 Lambs Conduit Street, London, WC1N	£21,848
Atlant Construction, London, Greater London, W1T	£21,848
Big Mamma, Greater London, W1F	£21,944
Sehem Design, london, W1F	£21,944
Cornerstone, Greater London, W1F	£21,944
Elite Building, 7 Bell Yard, London, Greater London, WC2A	£21,848
Elite Building, Greater London, WC2A	£21,944
JM Building Services, Hatton Garden, EC1N	£21,888
Adamko Dry Lining London, Greater London, WC2N	£21,944
Citygate, London, WC1H	£21,944

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Flat roof extension cost in New Oxford Street

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Flat roof extension cost in New Oxford Street

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