Cost to build a flat roof extension in Se16 7

Flat roof extension cost in Se16 7

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 Se16 7?

A flat roof extension ranges from the cheapest of £21,848 (MARMAREX based in SE16) to the dearest of £21,944 (MARMAREX based in SE16), 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 Se16 7 by posting a job with HaMuch. We'll send it to extension builders in Se16 7.

Estimates for flat roof extension near Se16 7

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	£17,400
	Build a two storey extension	£87,851
	Build a timber frame extension	£25,900
	Install a swimming pool	£80,900
	Cost to build a single storey extension	£53,010
	Cost to build a side return extension	£40,380
	Install an RSJ	£2,100
	Build an outbuilding	£9,900
	Build a mansard loft conversion	£51,900
	Cost of a loft conversion	£32,817
	Build a kitchen extension	£41,900
	Build a hip to gable loft conversion	£41,900
	Build a granny annexe	£86,900
	Build a garden office	£9,900
	Convert a garage	£15,900
	Build a new garage	£18,400
	Build a flat roof extension	£21,900
	Build a dormer loft conversion	£41,900
	Lay a concrete foundation	£6,150
	Convert a bungalow loft	£28,900
	Basement conversion cost	£36,380

Business name	Flat roof extension cost
MARMAREX, London, Greater London, SE16	£21,848
MARMAREX, London, SE16	£21,944
ROOSE CONSTRUCTION LTD, Rotherhithe, SE16	£21,864
CG Design and Build LTD., Greater London, e14	£21,944
CG Design and Build LTD., London Arena, Greater London, e14	£21,848
SCL Design & Build Ltd, Londonderry, SE16	£21,944
WiseContract, Studio 33, Unit 10, elizabeth Industrial Estate, Juno Way, London, Greater London, se14	£21,848
ALFA Building Solutions Ltd, Greater London, E14	£21,944
ALFA Building Solutions Ltd, London, Greater London, E14	£21,848
Island design & Construction Ltd, Greater London, E14	£21,944
Dumrea Building Construction Ltd, London, SE14	£21,888
Ac construction, 154 jamaica road, London, Greater London, Se16	£21,848
DWL Construction Ltd, London, SE14	£21,944
Ballara Ltd, Argyle Way, London, Greater London, SE16	£21,856
Ballara Ltd, Greater London, SE16	£21,944
PHE BUILDING SERVICES, Greater London, E14	£21,944
Queenie Chan Studio, Greater London, SE16	£21,944
Builders, Shoreditch, E1	£21,888
Home Tranformers Ltd, London, SE1	£21,944
Baseline Build & Renovate, London, Greater London, SE15	£21,848
PMG Design & Build Ltd, Greater London, E1	£21,944
DARKyellow, London, Greater London, E1	£21,856
Jamie Brown Construction, Jamie Brown Construction, London, Greater London, E1	£21,856
Jamie Brown Construction, Greater London, E1	£21,944
Ask Building, Bermondsey, SE1	£21,888

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Flat roof extension cost in Se16 7

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Flat roof extension cost in Se16 7

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