Cost to build a flat roof extension in Liverpool Street

Flat roof extension cost in Liverpool 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 Liverpool Street?

A flat roof extension ranges from the cheapest of £21,776 (SH Enterprise based in EC1V) to the dearest of £21,944 (Fornia Build Ltd based in EC1V), 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 Liverpool Street by posting a job with HaMuch. We'll send it to extension builders in Liverpool Street.

Estimates for flat roof extension near Liverpool 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
Which is cheaper: a flat roof or pitched roof?
How long does a flat roof extension take?
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	£17,395
	Build a two storey extension	£87,842
	Build a timber frame extension	£25,895
	Install a swimming pool	£80,895
	Cost to build a single storey extension	£52,894
	Cost to build a side return extension	£40,316
	Install an RSJ	£2,095
	Build an outbuilding	£9,895
	Build a mansard loft conversion	£51,895
	Cost of a loft conversion	£32,763
	Build a kitchen extension	£41,895
	Build a hip to gable loft conversion	£41,895
	Build a granny annexe	£86,895
	Build a garden office	£9,895
	Convert a garage	£15,895
	Build a new garage	£18,395
	Build a flat roof extension	£21,895
	Build a dormer loft conversion	£41,895
	Lay a concrete foundation	£6,145
	Convert a bungalow loft	£28,895
	Basement conversion cost	£36,316

Business name	Flat roof extension cost
Venta Construction, 8 City Road, London, Greater London, EC1Y	£21,848
Fornia Build Ltd, Greater London, EC1V	£21,944
Fornia Build Ltd, London, Greater London, EC1V	£21,848
TOP CONSTRUCTION, Moorfields Eye Hospital, EC1V	£21,856
Aylaa Exclusive, 9 Newbury Street, london, Greater London, EC1A	£21,848
Shine Your Home, Shine Your Home Services, London, Greater London, E1	£21,856
MakoExpert Ltd - Property Refurbishment Specialist, Greater London, EC2A	£21,944
Helix Group Ltd, London, EC2A	£21,944
Torrington, london, EC2A	£21,888
Kindred Elite, London, Hertfordshire, EC2A	£21,856
WECAN Associates, Greater London, EC2A	£21,944
BUILDCOM, Greater London, Ec2a	£21,944
Grandis Whim, 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
Omniform, Greater London, EC3V	£21,856
Londoner Building Ltd., Greater London, EC1A	£21,944
London Roof Gardens, 30 The Leadenhall Building, 122 Leadenhall Street, London, Greater London, EC3V	£21,944
Dual City Building Contractors Limited, London, EC1V	£21,944
Alkemist Build and Decorate, Kemp House, 160 City Road,, London, Londonderry, EC1V	£21,848
Uno contract limited, Greater London, EC1V	£21,944
SH Enterprise, Moorfields Eye Hospital, EC1V	£21,776
MM Construction Group, 152-160 City Road, London, Greater London, EC1V	£21,848
STAY STEEL, London, EC1V	£21,944

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Flat roof extension cost in Liverpool Street

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Flat roof extension cost in Liverpool Street

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