Cost to build a flat roof extension in Sw 1

Flat roof extension cost in Sw 1

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 Sw 1?

A flat roof extension ranges from the cheapest of £21,840 (Aflux Designs based in SW10) to the dearest of £21,944 (Olga Ashby Interiors based in SW), 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 Sw 1 by posting a job with HaMuch. We'll send it to extension builders in Sw 1.

Estimates for flat roof extension near Sw 1

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	£17,417
	Build a two storey extension	£87,875
	Build a timber frame extension	£25,917
	Install a swimming pool	£80,917
	Cost to build a single storey extension	£53,336
	Cost to build a side return extension	£40,564
	Install an RSJ	£2,117
	Build an outbuilding	£9,917
	Build a mansard loft conversion	£51,917
	Cost of a loft conversion	£32,970
	Build a kitchen extension	£41,917
	Build a hip to gable loft conversion	£41,917
	Build a granny annexe	£86,917
	Build a garden office	£9,917
	Convert a garage	£15,917
	Build a new garage	£18,417
	Build a flat roof extension	£21,917
	Build a dormer loft conversion	£41,917
	Lay a concrete foundation	£6,167
	Convert a bungalow loft	£28,917
	Basement conversion cost	£36,564

Business name	Flat roof extension cost
Olga Ashby Interiors, Greater London, SW	£21,944
Phormwork, Greater London, SW1	£21,944
GDP, Greater London, SW10	£21,944
Everyman Building, Greater London, SW1	£21,944
AX Capital Development, Greater London, SW	£21,944
J & L Building, Greater London, SW1	£21,944
Architectural & Style, Greater London, SW1	£21,944
Space 8 Design, Greater London, SW	£21,944
RightHauz Construction, Greater London, SW	£21,944
Aflux Designs, 132-134 Worlds End Studios, Lots Road, London, Greater London, SW10	£21,840
Minimarch Design Studio, Greater London, SW10	£21,944
Aflux Designs, Greater London, SW10	£21,944
Obespoke & Obbard Design & Development, The Yacht Club, Chelsea Harbour, Chelsea, Greater London, SW10	£21,840
Atica LTD, Greater London, SW10	£21,944
MG London, 2 Station Court, Imperial Wharf, London, Greater London, SW6	£21,840
NGB Construction, Greater London, SW6	£21,944
NGB Construction, London, Greater London, SW6	£21,840
MS Contractor Ltd, Greater London, SW10	£21,944
Royale Renovations, Battersea, SW11	£21,880
Leon, Greater London, Sw6	£21,944
The Property Service, Londonderry, SW6	£21,944
Pyramids Construction, 2G Coopers House, Michael Road, London, Greater London, SW6	£21,840
Regal Construction Services, London, SW6	£21,856
Monica Davis Property Limited, London, SW10	£21,944
Eerospace, Londonderry, SW11	£21,936

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Flat roof extension cost in Sw 1

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Flat roof extension cost in Sw 1

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