Cost to build a flat roof extension in WC1H

Extend your WC1H with an extension

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 WC1H?

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Flat roof extension cost in WC1H
Build a flat roof extension cost in WC1H
Estimates for common extension builder jobs in WC1H;

Flat roof extension cost in WC1H

A flat roof extension ranges from the cheapest of £21,848 (FLAVIA CONDE based in WC1N) to the dearest of £23,200 (Q Lofts and Extensions based in EC1R), 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 WC1H by posting a job with HaMuch. We'll send it to extension builders in WC1H.

Estimates for build a flat roof extension near WC1H

Estimates for common extension builder jobs in WC1H;

Rates for other WC1H trades

Build a flat roof extension cost in WC1H

Estimate Build a flat roof extension cost in WC1H based on hourly/daily rate (excluding VAT or callout charges)
Business name	Build a flat roof extension cost
Citygate, London, WC1H	£21,944
NARCH Ltd, Greater London, WC1H	£21,944
Longland Construction, Greater London, WC1N	£21,944
FLAVIA CONDE, 27 Old Gloucester Street, London, Greater London, WC1N	£21,848
CK Constructions & Development Ltd, Russell Square, WC1N	£21,888
Pacho Build Ltd, 27 Old Gloucester Street, London, Greater London, wc1n	£21,848
Otto & Mensah Build, 15 Lambs Conduit Street, London, WC1N	£21,848
Buildwiser, King's Cross, WC1X	£21,864
DeHome Studio, Greater London, N1	£21,944
Atlant Construction, London, Greater London, W1T	£21,848
TipTop Joinery & Build, London, Greater London, WC1V	£21,848
JM Building Services, Hatton Garden, EC1N	£21,888
NWL BUILDERS LTD, 4th Floor, Silverstream House, 45 Fitzroy Street, Fitzrovia, London, Greater London, W1T	£21,848
Matstone Projects Limited, Greater London, WC2H	£21,944
My Lady Builder, Greater London, WC2H	£21,944
HouseUP, 71-75 Shelton Street, Covent Garden, London, WC2H	£21,848
My Trusted Builder, London, Greater London, wc2h	£21,848
Rucco Property, Greater London, WC2H	£21,944
Whitehorse Build London, Greater London, WC2H	£21,944
ElleHaus, Greater London, WC2H	£21,944
ORO Projects, Greater London, WC2H	£21,944
Gil Construction Ltd, Greater London, WC2H	£21,944
House Rendering Ltd, 71-75, Shelton Street, Covent Garden, Greater London, WC2H	£21,848
Q Lofts and Extensions , London , EC1R	£23,200
Minton Builders LTD, Greater London, N1	£21,944

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	Job	Estimate
	Cost to underpin a house	£17,452
	Build a two storey extension	£87,928
	Cost to build a timber frame extension	£25,952
	Cost to build a swimming pool	£80,952
	Cost to build a single storey extension	£54,040
	Cost to build a side return extension	£40,960
	Cost to Install an RSJ	£2,152
	Build an outbuilding	£9,952
	Cost to build a mansard loft conversion	£51,952
	Cost of a loft conversion	£33,300
	Cost to build a kitchen extension	£41,952
	Build a hip to gable loft conversion	£41,952
	Build a granny annexe	£86,952
	Build a garden office	£9,952
	Cost of a garage conversion	£15,952
	Build a new garage	£18,452
	Cost to build a flat roof extension	£21,952
	Cost to build a dormer loft conversion	£41,952
	Lay a concrete foundation	£6,202
	Cost of a bungalow loft conversion	£28,952
	Basement conversion cost	£36,960