Cost to build a flat roof extension in Deptford

Flat roof extension cost in Deptford

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 Deptford?

A flat roof extension ranges from the cheapest of £21,848 (CG Design and Build LTD. based in e14) to the dearest of £21,944 (Island design & Construction Ltd based in E14), 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 Deptford by posting a job with HaMuch. We'll send it to extension builders in Deptford.

Estimates for flat roof extension near Deptford

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
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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	£52,933
	Cost to build a side return extension	£40,337
	Install an RSJ	£2,097
	Build an outbuilding	£9,897
	Build a mansard loft conversion	£51,897
	Cost of a loft conversion	£32,781
	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	£36,337

Business name	Flat roof extension cost
Island design & Construction Ltd, Greater London, E14	£21,944
Dumrea Building Construction Ltd, London, SE14	£21,888
CG Design and Build LTD., London Arena, Greater London, e14	£21,848
CG Design and Build LTD., Greater London, e14	£21,944
WiseContract, Studio 33, Unit 10, elizabeth Industrial Estate, Juno Way, London, Greater London, se14	£21,848
DWL Construction Ltd, London, SE14	£21,944
AZC BUILDING SERVICES, Greenwich, SE10	£21,864
blitbolt ltd, london, Greater London, SE4	£21,848
blitbolt ltd, Greater London, SE4	£21,944
MARMAREX, London, SE16	£21,944
MARMAREX, London, Greater London, SE16	£21,848
ROOSE CONSTRUCTION LTD, Rotherhithe, SE16	£21,864
Baseline Build & Renovate, London, Greater London, SE15	£21,848
ALFA Building Solutions Ltd, Greater London, E14	£21,944
ALFA Building Solutions Ltd, London, Greater London, E14	£21,848
Demiri Builder Ltd, London, SE13	£21,944
Trafalgar Building Company Limited, Greenwich, SE10	£21,864
SCL Design & Build Ltd, Londonderry, SE16	£21,944
Dule Vida Property Design Ltd, Greater London, SE13	£21,944
Storeyboard, London, Greater London, SE10	£21,848
Storeyboard, Greater London, SE10	£21,944
Prestige Roofing Limited, 70 Colomb Street, Greenwich, London, SE10	£21,896
Ballara Ltd, Argyle Way, London, Greater London, SE16	£21,856
Ballara Ltd, Greater London, SE16	£21,944
1M Construction Ltd, Peckham, SE15	£21,864

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Flat roof extension cost in Deptford

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Flat roof extension cost in Deptford

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