Cost to build a flat roof extension in N6

Flat roof extension cost in N6

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 N6?

A flat roof extension ranges from the cheapest of £21,600 (Arundell Associates based in N10) 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 N6 by posting a job with HaMuch. We'll send it to extension builders in N6.

Estimates for flat roof extension near N6

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?
How long does a flat roof extension take?
Do you need planning permission for a flat roof extension?
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	£17,387
	Build a two storey extension	£87,830
	Build a timber frame extension	£25,887
	Install a swimming pool	£80,887
	Cost to build a single storey extension	£52,734
	Cost to build a side return extension	£40,226
	Install an RSJ	£2,087
	Build an outbuilding	£9,887
	Build a mansard loft conversion	£51,887
	Cost of a loft conversion	£32,688
	Build a kitchen extension	£41,887
	Build a hip to gable loft conversion	£41,887
	Build a granny annexe	£86,887
	Build a garden office	£9,887
	Convert a garage	£15,887
	Build a new garage	£18,387
	Build a flat roof extension	£21,887
	Build a dormer loft conversion	£41,887
	Lay a concrete foundation	£6,137
	Convert a bungalow loft	£28,887
	Basement conversion cost	£36,226

Business name	Flat roof extension cost
Supreme Home Improvements London, London, n19	£21,864
ARCHWAY DESIGN+BUILD LTD, Archway, N19	£21,864
Avocado Sweets Design Studio, Studio 37, Bickerton House, 25-27 Bickerton Road, London, Greater London, N19	£21,848
Adrian Noonan Ltd, London, NW5	£21,888
RAM Build Construction Ltd, 21 Laurier Rd, Highgate, London, Greater London, NW5	£21,848
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
SJ Expert Building Services, Muswell Hill, N10	£21,888
Arundell Associates, London, N10	£21,600
Portico design and build ltd, Greater London, N8	£21,944
Portico design and build ltd, 9 barrington road, London, Greater London, N8	£21,848
Hudson Builders & Bathrooms, London, N7	£21,944
Brothers Group, London, N4	£21,944
Capital Projects, Unit 320, Highgate Studios, 53-79 Highgate Road, London, NW5	£21,848
Capital Projects, London, NW5	£21,944
N10 Tradespeople, Greater London, N10	£21,944
D.W Baker, Holloway, N7	£21,888
Gardens Dwarfs Home & Garden Service, Greater London, N10	£21,944
CM Build, Greater London, N10	£21,944
Ally Electrical Services Ltd, Lonsto House, Princes Lane, London, Grea, N10	£21,944
N10 Building Contractors Ltd, Muswell Hill, N10	£21,840
JAMES REGAN CONSTRUCTION, Kentish Town, NW5	£21,864
PLAN C - Design. Build. Create, Greater London, N10	£21,944
PLAN C - Design. Build. Create, 500 Muswell Hill Broadway, London, Greater London, N10	£21,848

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Flat roof extension cost in N6

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Flat roof extension cost in N6

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