Cost to build a flat roof extension in SE27

Flat roof extension cost in SE27

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 SE27?

A flat roof extension ranges from the cheapest of £21,600 (RCB Group Design & Build based in SE21) to the dearest of £22,400 (Buci builders ltd based in SE27), 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 SE27 by posting a job with HaMuch. We'll send it to extension builders in SE27.

Estimates for flat roof extension near SE27

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	£17,398
	Build a two storey extension	£87,846
	Build a timber frame extension	£25,898
	Install a swimming pool	£80,898
	Cost to build a single storey extension	£52,952
	Cost to build a side return extension	£40,348
	Install an RSJ	£2,098
	Build an outbuilding	£9,898
	Build a mansard loft conversion	£51,898
	Cost of a loft conversion	£32,790
	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	£36,348

Business name	Flat roof extension cost
Buci builders ltd, London, SE27	£22,400
St Ives Decor, Greater London, SE27	£21,944
Alta London Design & Project Management, Greater London, SE27	£21,944
Create Bespoke, Greater London, SE21	£21,944
RCB Group Design & Build, London, SE21	£21,600
Parallax Project Management, Greater London, SE27	£21,944
JM Property Maintenance, Salters Hill, SE19	£21,848
Martin's Builders & Decorators, 237 Gipsy Road, West Norwood, London, Greater London, SE27	£21,848
Urban London Development, 242 Gipsy Road, London, Greater London, SE27	£21,848
Greene, Surrey, Se19	£21,944
Adam-Ashton &associates Limited, Greater London, SW2	£21,944
Universal Plastering Ltd, Greater London, SE19	£21,944
Complete Construction London Limited, Streatham, SW2	£21,856
Magic Projects London Ltd, 50A Palace Road, London, Greater London, SW2	£21,848
PW Construction & Renovation Ltd, Streatham, SW16	£21,888
Exquisite Touch, Streatham, SW16	£21,888
PEAKE Projects London Ltd, London, Greater London, SW16	£21,848
Bantos Limited, Greater London, sw2	£21,944
Nova Renovation, Nova, London, SW16	£21,848
Damian Szlema Construction LTD, Leigham Avenue, Lond, SW16	£21,864
Concept Construction London Ltd , London, SW16	£21,880
M PIETROW T/A M P BUILDERS, Brixton, SW2	£21,864
LONDON GREAT CONSTRUCTION, Streatham, SW16	£21,864
Build and Convert Services, 10 Streatleigh Parade, Streatham High Road, London, Greater London, SW16	£21,848
South London Conversions Ltd., London, SE19	£21,848

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Flat roof extension cost in SE27

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Flat roof extension cost in SE27

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