Cost to build a flat roof extension in West Kensington

Flat roof extension cost in West Kensington

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 West Kensington?

A flat roof extension ranges from the cheapest of £21,832 (Griana Builds based in W14) to the dearest of £22,000 (H G Builders based in SW6), 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 West Kensington by posting a job with HaMuch. We'll send it to extension builders in West Kensington.

Estimates for flat roof extension near West Kensington

"Flat roof extension for a period mews terraced house. We'd like a bedroom extension with full bathroom and a roof top terrace. Footprint is roughly 8.5m x 6m."

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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What insulation do I need for a flat roof extension?

	Job	Estimate
	Underpinning a house	£17,394
	Build a two storey extension	£87,841
	Build a timber frame extension	£25,894
	Install a swimming pool	£80,894
	Cost to build a single storey extension	£52,882
	Cost to build a side return extension	£40,308
	Install an RSJ	£2,094
	Build an outbuilding	£9,894
	Build a mansard loft conversion	£51,894
	Cost of a loft conversion	£32,757
	Build a kitchen extension	£41,894
	Build a hip to gable loft conversion	£41,894
	Build a granny annexe	£86,894
	Build a garden office	£9,894
	Convert a garage	£15,894
	Build a new garage	£18,394
	Build a flat roof extension	£21,894
	Build a dormer loft conversion	£41,894
	Lay a concrete foundation	£6,144
	Convert a bungalow loft	£28,894
	Basement conversion cost	£36,308

Business name	Flat roof extension cost
Griana Builds, London, W14	£21,832
NuHome, London, W14	£21,944
home refurbishments, London, Greater London, W14	£21,848
2MO, London, Greater London, W14	£21,848
2MO, Greater London, W14	£21,944
New Line Construction Ltd, London, W6	£21,944
The Architects Of London, 239 Kensington High Street, London, Greater London, W8	£21,848
DAMA CONSTRUCTION LTD, West Kensington, W14	£21,864
Hammerhead General Contractors Ltd, London, Greater London, W12	£21,848
Rose Narmani, Greater London, W8	£21,944
Vyas Design, South Ayrshire, W8	£21,944
FrontierstroyUK, Greater London, W8	£21,944
chasewood maintenance, london, sw6	£21,840
Leufroy, 62 Kenway Road, London, Greater London, SW5	£21,848
Leufroy, Greater London, SW5	£21,944
H G Builders, Fulham, London, SW6	£22,000
Darlo Ltd, London, W6	£21,944
GB Buildings & Renovations, London, London, Greater London, W6	£21,848
TELEMARK CONSTRUCTION LTD, Earl's Court, SW5	£21,864
Newpark Construction, Shepherd's Bush, W12	£21,888
London Roofing Specialist Limited, Greater London, W8	£21,944
Huntsmore, 96 Kensington High Street, London, Greater London, W8	£21,848
Broseley, London, W8	£21,848
GSP, Greater London, W8	£21,944
Extend, 320 Munster Road, Fulham, Greater London, SW6	£21,840

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Flat roof extension cost in West Kensington

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Flat roof extension cost in West Kensington

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