Cost to build a flat roof extension in EC3R

Flat roof extension cost in EC3R

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 EC3R?

A flat roof extension ranges from the cheapest of £21,848 (Volute London based in EC4N) to the dearest of £21,944 (GenUp Digital based in EC3M), 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 EC3R by posting a job with HaMuch. We'll send it to extension builders in EC3R.

Estimates for flat roof extension near EC3R

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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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	£17,397
	Build a two storey extension	£87,845
	Build a timber frame extension	£25,897
	Install a swimming pool	£80,897
	Cost to build a single storey extension	£52,939
	Cost to build a side return extension	£40,341
	Install an RSJ	£2,097
	Build an outbuilding	£9,897
	Build a mansard loft conversion	£51,897
	Cost of a loft conversion	£32,784
	Build a kitchen extension	£41,897
	Build a hip to gable loft conversion	£41,897
	Build a granny annexe	£86,897
	Build a garden office	£9,897
	Convert a garage	£15,897
	Build a new garage	£18,397
	Build a flat roof extension	£21,897
	Build a dormer loft conversion	£41,897
	Lay a concrete foundation	£6,147
	Convert a bungalow loft	£28,897
	Basement conversion cost	£36,341

Business name	Flat roof extension cost
Volute London, London, Greater London, EC4N	£21,848
GenUp Digital, East Dunbartonshire, EC3M	£21,944
London Roof Gardens, 30 The Leadenhall Building, 122 Leadenhall Street, London, Greater London, EC3V	£21,944
Omniform, Greater London, EC3V	£21,856
evolve property solutions, Unit 143, 155 Minories, London, Greater London, EC3N	£21,856
Shine Your Home, Shine Your Home Services, London, Greater London, E1	£21,856
Venta Construction, 8 City Road, London, Greater London, EC1Y	£21,848
Stanrock Building Services Ltd, Greater London, se1	£21,944
Stanrock Building Services Ltd, Unit 3b Plantain Place, London, Greater London, se1	£21,848
Space Design Construction Services Ltd, London, Greater London, SE1	£21,848
Flow Property Services, London, Greater London, EC4M	£21,848
Renovation work service, London, E1W	£21,944
Aylaa Exclusive, 9 Newbury Street, london, Greater London, EC1A	£21,848
Kia Designs, Greater London, SE1	£21,944
Pencil and Brick, Greater London, E1	£21,944
Londoner Building Ltd., Greater London, EC1A	£21,944
Altana Building Co.Ltd, Bermondsey, SE1	£21,888
SDL PKB, 107 - 111 Fleet street - London -, London, Ec4a	£21,848
SCANDIIN, International House 24 Holborn Viaduct, London, Greater London, EC1A	£21,848
MakoExpert Ltd - Property Refurbishment Specialist, Greater London, EC2A	£21,944
Helix Group Ltd, London, EC2A	£21,944
Gabriel Shin, Greater London, E1	£21,944
BUILDCOM, Greater London, Ec2a	£21,944
WECAN Associates, WECAN Associates, 86-90 Paul Street, London, Greater London, EC2A	£21,856
London Art Construction and Design, Greater London, EC2A	£21,944

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Flat roof extension cost in EC3R

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Flat roof extension cost in EC3R

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