Cost to build a flat roof extension in EC1R

Flat roof extension cost in EC1R

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 EC1R?

A flat roof extension ranges from the cheapest of £21,848 (Andrew Penny Construction based in EC1N) 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 EC1R by posting a job with HaMuch. We'll send it to extension builders in EC1R.

Estimates for flat roof extension near EC1R

How much does a flat roof extension cost?
Flat roof extension cost per m2
Factors affecting the cost of flat roof extensions
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	Job	Estimate
	Underpinning a house	£17,455
	Build a two storey extension	£87,932
	Build a timber frame extension	£25,955
	Install a swimming pool	£80,955
	Cost to build a single storey extension	£54,091
	Cost to build a side return extension	£40,989
	Install an RSJ	£2,155
	Build an outbuilding	£9,955
	Build a mansard loft conversion	£51,955
	Cost of a loft conversion	£33,324
	Build a kitchen extension	£41,955
	Build a hip to gable loft conversion	£41,955
	Build a granny annexe	£86,955
	Build a garden office	£9,955
	Convert a garage	£15,955
	Build a new garage	£18,455
	Build a flat roof extension	£21,955
	Build a dormer loft conversion	£41,955
	Lay a concrete foundation	£6,205
	Convert a bungalow loft	£28,955
	Basement conversion cost	£36,989

Business name	Flat roof extension cost
Q Lofts and Extensions , London , EC1R	£23,200
Andrew Penny Construction, 63-66 Hatton Garden 5th floor Suite 23, London, Greater London, EC1N	£21,848
Kovacs Construction Ltd, Greater London, EC1N	£21,944
Kovacs Construction Ltd, 4th Floor, 18 St. Cross Street, London, Greater London, EC1N	£21,848
Oxford West, London, EC1N	£21,848
JM Building Services, Hatton Garden, EC1N	£21,888
EB, London, EC1V	£21,888
Londoner Building Ltd., Greater London, EC1A	£21,944
Buildwiser, King's Cross, WC1X	£21,864
Rabjohn Construction Ltd, South Yorkshire, N1	£21,944
Gordon Construction, Cambridgeshire, N1	£21,944
Novo London Design and Build, Greater London, N1	£21,944
Crowngate Construction, Warwickshire, N1	£21,944
Centaurus Construction Limited, Greater London, N1	£21,944
Cedar Developments, West Lothian, N1	£21,944
Minton Builders LTD, Greater London, N1	£21,944
TOP CONSTRUCTION, Moorfields Eye Hospital, EC1V	£21,856
Otto & Mensah Build, 15 Lambs Conduit Street, London, WC1N	£21,848
Aylaa Exclusive, 9 Newbury Street, london, Greater London, EC1A	£21,848
SCANDIIN, International House 24 Holborn Viaduct, London, Greater London, EC1A	£21,848
Fornia Build Ltd, London, Greater London, EC1V	£21,848
Fornia Build Ltd, Greater London, EC1V	£21,944
Facit Homes, 3A Godson Street, London, Greater London, N1	£21,848
GD CONSTRUCTION, London, WC1X	£22,000
DeHome Studio, Greater London, N1	£21,944

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Flat roof extension cost in EC1R

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Flat roof extension cost in EC1R

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