Cost to build a flat roof extension in Bow

Flat roof extension cost in Bow

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 Bow?

A flat roof extension ranges from the cheapest of £21,848 (Reconstruction based in E3) to the dearest of £21,944 (Team Constructions 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 Bow by posting a job with HaMuch. We'll send it to extension builders in Bow.

"Flat roof extension"

How much does a flat roof extension cost?
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Factors affecting the cost of flat roof extensions
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What insulation do I need for a flat roof extension?

	Job	Estimate
	Underpinning a house	£17,390
	Build a two storey extension	£87,834
	Build a timber frame extension	£25,890
	Install a swimming pool	£80,890
	Cost to build a single storey extension	£52,792
	Cost to build a side return extension	£40,258
	Install an RSJ	£2,090
	Build an outbuilding	£9,890
	Build a mansard loft conversion	£51,890
	Cost of a loft conversion	£32,715
	Build a kitchen extension	£41,890
	Build a hip to gable loft conversion	£41,890
	Build a granny annexe	£86,890
	Build a garden office	£9,890
	Convert a garage	£15,890
	Build a new garage	£18,390
	Build a flat roof extension	£21,890
	Build a dormer loft conversion	£41,890
	Lay a concrete foundation	£6,140
	Convert a bungalow loft	£28,890
	Basement conversion cost	£36,258

Business name	Flat roof extension cost
Reconstruction, London, E3	£21,848
Glenward Builders Ltd, Bow, E3	£21,936
Darren & Valentin Construction & Maintenance, Bow, E3	£21,856
F I X U P, London, Greater London, E3	£21,856
Powerpillar Ltd, London, E3	£21,856
Hudson Bespoke Buildings, Unit 2 Marshgate Business Centre, Marshgate Lane, London, Greater London, E15	£21,856
ISLE CONSTRUCTION LTD, Bow, E3	£21,864
Team Constructions, Greater London, E14	£21,944
Andy Tunmer Building Services, Canary Wharf, E14	£21,888
One Point Services Ltd, London, E15	£21,944
AB Building Maintainance, Bethnal Green, E2	£21,864
House Proud Construction & Design, London, E9	£21,944
Scandinavian Loft, Main Yard Studios, 90 Wallis Rd, Hackney Wick, London, E9	£21,848
ALRIMO CONSTRUCTION LTD, Stratford, E15	£21,864
Sequoia Homes Ltd, Greater London, E15	£21,944
GNB Construction Builders Ltd, Stratford, E15	£21,888
Builders, Shoreditch, E1	£21,888
PHE BUILDING SERVICES, Greater London, E14	£21,944
Renobuild Group, London, E1	£21,888
KAROL OMILIAN BUILDING SERVICE, Stratford, E15	£21,864
PMG Design & Build Ltd, Greater London, E1	£21,944
Jamie Brown Construction, Greater London, E1	£21,944
Jamie Brown Construction, Jamie Brown Construction, London, Greater London, E1	£21,856
DARKyellow, London, Greater London, E1	£21,856
Sean & Stephen Ltd, Unit 61 Regents Studios, 8 Andrews Road, London, Greater London, E8	£21,856

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Flat roof extension cost in Bow

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Flat roof extension cost in Bow

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