Cost to build a flat roof extension in EC4M

Flat roof extension cost in EC4M

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 EC4M?

A flat roof extension ranges from the cheapest of £21,848 (Flow Property Services based in EC4M) 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 EC4M by posting a job with HaMuch. We'll send it to extension builders in EC4M.

Estimates for flat roof extension near EC4M

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	£17,431
	Build a two storey extension	£87,896
	Build a timber frame extension	£25,931
	Install a swimming pool	£80,931
	Cost to build a single storey extension	£53,618
	Cost to build a side return extension	£40,722
	Install an RSJ	£2,131
	Build an outbuilding	£9,931
	Build a mansard loft conversion	£51,931
	Cost of a loft conversion	£33,102
	Build a kitchen extension	£41,931
	Build a hip to gable loft conversion	£41,931
	Build a granny annexe	£86,931
	Build a garden office	£9,931
	Convert a garage	£15,931
	Build a new garage	£18,431
	Build a flat roof extension	£21,931
	Build a dormer loft conversion	£41,931
	Lay a concrete foundation	£6,181
	Convert a bungalow loft	£28,931
	Basement conversion cost	£36,722

Business name	Flat roof extension cost
Flow Property Services, London, Greater London, EC4M	£21,848
SDL PKB, 107 - 111 Fleet street - London -, London, Ec4a	£21,848
SCANDIIN, International House 24 Holborn Viaduct, London, Greater London, EC1A	£21,848
Londoner Building Ltd., Greater London, EC1A	£21,944
Aylaa Exclusive, 9 Newbury Street, london, Greater London, EC1A	£21,848
Elite Building, Greater London, WC2A	£21,944
Elite Building, 7 Bell Yard, London, Greater London, WC2A	£21,848
Kovacs Construction Ltd, 4th Floor, 18 St. Cross Street, London, Greater London, EC1N	£21,848
Kovacs Construction Ltd, Greater London, EC1N	£21,944
Omniform, Greater London, EC3V	£21,856
Oxford West, London, EC1N	£21,848
Andrew Penny Construction, 63-66 Hatton Garden 5th floor Suite 23, London, Greater London, EC1N	£21,848
Volute London, London, Greater London, EC4N	£21,848
JM Building Services, Hatton Garden, EC1N	£21,888
TOP CONSTRUCTION, Moorfields Eye Hospital, EC1V	£21,856
Fornia Build Ltd, Greater London, EC1V	£21,944
Fornia Build Ltd, London, Greater London, EC1V	£21,848
Venta Construction, 8 City Road, London, Greater London, EC1Y	£21,848
Infinite CM, Greater London, SE1	£21,936
Q Lofts and Extensions , London , EC1R	£23,200
London Roof Gardens, 30 The Leadenhall Building, 122 Leadenhall Street, London, Greater London, EC3V	£21,944
GenUp Digital, East Dunbartonshire, EC3M	£21,944
Space Design Construction Services Ltd, London, Greater London, SE1	£21,848
TipTop Joinery & Build, London, Greater London, WC1V	£21,848
Otto & Mensah Build, 15 Lambs Conduit Street, London, WC1N	£21,848

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Flat roof extension cost in EC4M

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Flat roof extension cost in EC4M

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