Cost to build a flat roof extension in EC2A

Extend your EC2A 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 EC2A?

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Flat roof extension cost in EC2A
Build a flat roof extension cost in EC2A
Estimates for common extension builder jobs in EC2A;

Flat roof extension cost in EC2A

A flat roof extension ranges from the cheapest of £21,848 (Venta Construction based in EC1Y) to the dearest of £21,944 (Helix Group Ltd based in EC2A), 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 EC2A by posting a job with HaMuch. We'll send it to extension builders in EC2A.

Estimates for build a flat roof extension near EC2A

Estimates for common extension builder jobs in EC2A;

Rates for other EC2A trades

Build a flat roof extension cost in EC2A

Estimate Build a flat roof extension cost in EC2A based on hourly/daily rate (excluding VAT or callout charges)
Business name	Build a flat roof extension cost
Venta Construction, 8 City Road, London, Greater London, EC1Y	£21,848
Helix Group Ltd, London, EC2A	£21,944
BUILDCOM, Greater London, Ec2a	£21,944
Glass Spaces, Extensions and Rooms, 86-90 Paul street,, EC2A	£21,856
WECAN Associates, WECAN Associates, 86-90 Paul Street, London, Greater London, EC2A	£21,856
London Art Construction and Design, Greater London, EC2A	£21,944
Grandis Whim, Greater London, EC2A	£21,944
Torrington, london, EC2A	£21,888
Kindred Elite, London, Hertfordshire, EC2A	£21,856
WECAN Associates, Greater London, EC2A	£21,944
Chronos Home Improvements, Greater London, N1	£21,944
Dual City Building Contractors Limited, London, EC1V	£21,944
MM Construction Group, 152-160 City Road, London, Greater London, EC1V	£21,848
Reltic Project, Londonderry, EC1V	£21,944
PAD, Greater London, EC1V	£21,944
Equitable Property & Financial Services LTD, Greater London, EC1V	£21,944
Redway Construction, London, Greater London, EC1V	£21,848
Alkemist Build and Decorate, Kemp House, 160 City Road,, London, Londonderry, EC1V	£21,848
K Construct Ltd, Greater London, EC1V	£21,944
Arkbuild.london, Greater London, Ec1v	£21,944
Uno contract limited, Greater London, EC1V	£21,944
Master Build Team, Kemp House,, 152-160 city road, London, Greater London, EC1V	£21,848
TP Building & Development Services Limited, Greater London, EC1V	£21,944
Eastgrand Limited, Greater London, EC1V	£21,944
Cadway Group Ltd, Kemp House, 160 City Road, London, Greater London, EC1V	£21,848

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	Job	Estimate
	Cost to underpin a house	£17,408
	Build a two storey extension	£87,862
	Cost to build a timber frame extension	£25,908
	Cost to build a swimming pool	£80,908
	Cost to build a single storey extension	£53,163
	Cost to build a side return extension	£40,467
	Cost to Install an RSJ	£2,108
	Build an outbuilding	£9,908
	Cost to build a mansard loft conversion	£51,908
	Cost of a loft conversion	£32,889
	Cost to build a kitchen extension	£41,908
	Build a hip to gable loft conversion	£41,908
	Build a granny annexe	£86,908
	Build a garden office	£9,908
	Cost of a garage conversion	£15,908
	Build a new garage	£18,408
	Cost to build a flat roof extension	£21,908
	Cost to build a dormer loft conversion	£41,908
	Lay a concrete foundation	£6,158
	Cost of a bungalow loft conversion	£28,908
	Basement conversion cost	£36,467