Cost to build a flat roof extension in N19

Flat roof extension cost in N19

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 N19?

A flat roof extension ranges from the cheapest of £21,848 (Warren House Construction Ltd based in N19) to the dearest of £21,944 (Raocon Limited based in N19), 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 N19 by posting a job with HaMuch. We'll send it to extension builders in N19.

Estimates for flat roof extension near N19

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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Can you walk on a flat roof extension?
What insulation do I need for a flat roof extension?

	Job	Estimate
	Underpinning a house	£17,398
	Build a two storey extension	£87,847
	Build a timber frame extension	£25,898
	Install a swimming pool	£80,898
	Cost to build a single storey extension	£52,958
	Cost to build a side return extension	£40,352
	Install an RSJ	£2,098
	Build an outbuilding	£9,898
	Build a mansard loft conversion	£51,898
	Cost of a loft conversion	£32,793
	Build a kitchen extension	£41,898
	Build a hip to gable loft conversion	£41,898
	Build a granny annexe	£86,898
	Build a garden office	£9,898
	Convert a garage	£15,898
	Build a new garage	£18,398
	Build a flat roof extension	£21,898
	Build a dormer loft conversion	£41,898
	Lay a concrete foundation	£6,148
	Convert a bungalow loft	£28,898
	Basement conversion cost	£36,352

Business name	Flat roof extension cost
Raocon Limited, Greater London, N19	£21,944
WeTradeWorks, Greater London, N19	£21,944
Warren House Construction Ltd, 74 Shaftesbury Road, London, Greater London, N19	£21,848
Brothers Group, London, N4	£21,944
Hudson Builders & Bathrooms, London, N7	£21,944
Avocado Sweets Design Studio, Studio 37, Bickerton House, 25-27 Bickerton Road, London, Greater London, N19	£21,848
Supreme Home Improvements London, London, n19	£21,864
ARCHWAY DESIGN+BUILD LTD, Archway, N19	£21,864
D.W Baker, Holloway, N7	£21,888
Andreas Thomas Demetri, Holloway, N7	£21,888
RAM Build Construction Ltd, 21 Laurier Rd, Highgate, London, Greater London, NW5	£21,848
Adrian Noonan Ltd, London, NW5	£21,888
Bok Services Ltd, Greater London, N7	£21,944
Mel Massey Studio, Greater London, N4	£21,944
JAMES REGAN CONSTRUCTION, Kentish Town, NW5	£21,864
Capital Projects, Unit 320, Highgate Studios, 53-79 Highgate Road, London, NW5	£21,848
Capital Projects, London, NW5	£21,944
Portico design and build ltd, Greater London, N8	£21,944
Portico design and build ltd, 9 barrington road, London, Greater London, N8	£21,848
BM Lofts Limited, London, N4	£21,888
Nucleus Design Studio, The Basement, 324 Liverpool Road, London, N7	£21,848
Nucleus Design Studio, London, N7	£21,944
CMT Ltd, Islington, N1	£21,888
M Collins Builders Ltd, London, N4	£21,944
SJ Expert Building Services, Muswell Hill, N10	£21,888

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Flat roof extension cost in N19

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Flat roof extension cost in N19

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