Cost to build a flat roof extension in EC3N

Flat roof extension cost in EC3N

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 EC3N?

A flat roof extension ranges from the cheapest of £21,848 (Volute London based in EC4N) to the dearest of £21,944 (London Roof Gardens based in EC3V), 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 EC3N by posting a job with HaMuch. We'll send it to extension builders in EC3N.

Estimates for flat roof extension near EC3N

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	£17,403
	Build a two storey extension	£87,855
	Build a timber frame extension	£25,903
	Install a swimming pool	£80,903
	Cost to build a single storey extension	£53,061
	Cost to build a side return extension	£40,409
	Install an RSJ	£2,103
	Build an outbuilding	£9,903
	Build a mansard loft conversion	£51,903
	Cost of a loft conversion	£32,841
	Build a kitchen extension	£41,903
	Build a hip to gable loft conversion	£41,903
	Build a granny annexe	£86,903
	Build a garden office	£9,903
	Convert a garage	£15,903
	Build a new garage	£18,403
	Build a flat roof extension	£21,903
	Build a dormer loft conversion	£41,903
	Lay a concrete foundation	£6,153
	Convert a bungalow loft	£28,903
	Basement conversion cost	£36,409

Business name	Flat roof extension cost
evolve property solutions, Unit 143, 155 Minories, London, Greater London, EC3N	£21,856
London Roof Gardens, 30 The Leadenhall Building, 122 Leadenhall Street, London, Greater London, EC3V	£21,944
GenUp Digital, East Dunbartonshire, EC3M	£21,944
Volute London, London, Greater London, EC4N	£21,848
Omniform, Greater London, EC3V	£21,856
Shine Your Home, Shine Your Home Services, London, Greater London, E1	£21,856
Renovation work service, London, E1W	£21,944
Pencil and Brick, Greater London, E1	£21,944
Venta Construction, 8 City Road, London, Greater London, EC1Y	£21,848
Gabriel Shin, Greater London, E1	£21,944
Stanrock Building Services Ltd, Unit 3b Plantain Place, London, Greater London, se1	£21,848
Stanrock Building Services Ltd, Greater London, se1	£21,944
Altana Building Co.Ltd, Bermondsey, SE1	£21,888
Kia Designs, Greater London, SE1	£21,944
Helix Group Ltd, London, EC2A	£21,944
WECAN Associates, WECAN Associates, 86-90 Paul Street, London, Greater London, EC2A	£21,856
WECAN Associates, Greater London, EC2A	£21,944
BUILDCOM, Greater London, Ec2a	£21,944
London Art Construction and Design, Greater London, EC2A	£21,944
Glass Spaces, Extensions and Rooms, 86-90 Paul street,, EC2A	£21,856
Grandis Whim, Greater London, EC2A	£21,944
Kindred Elite, London, Hertfordshire, EC2A	£21,856
Torrington, london, EC2A	£21,888
MakoExpert Ltd - Property Refurbishment Specialist, Greater London, EC2A	£21,944
Aylaa Exclusive, 9 Newbury Street, london, Greater London, EC1A	£21,848

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Flat roof extension cost in EC3N

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Flat roof extension cost in EC3N

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