Cost to build a flat roof extension in SW2

Flat roof extension cost in SW2

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 SW2?

A flat roof extension ranges from the cheapest of £21,848 (Magic Projects London Ltd based in SW2) to the dearest of £21,944 (Bantos Limited based in sw2), 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 SW2 by posting a job with HaMuch. We'll send it to extension builders in SW2.

Estimates for flat roof extension near SW2

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	£17,385
	Build a two storey extension	£87,828
	Build a timber frame extension	£25,885
	Install a swimming pool	£80,885
	Cost to build a single storey extension	£52,709
	Cost to build a side return extension	£40,211
	Install an RSJ	£2,085
	Build an outbuilding	£9,885
	Build a mansard loft conversion	£51,885
	Cost of a loft conversion	£32,676
	Build a kitchen extension	£41,885
	Build a hip to gable loft conversion	£41,885
	Build a granny annexe	£86,885
	Build a garden office	£9,885
	Convert a garage	£15,885
	Build a new garage	£18,385
	Build a flat roof extension	£21,885
	Build a dormer loft conversion	£41,885
	Lay a concrete foundation	£6,135
	Convert a bungalow loft	£28,885
	Basement conversion cost	£36,211

Business name	Flat roof extension cost
All Trades Builders, Brixton, SW2	£21,864
Atelier 10, Brixton, SW2	£21,888
Quality Carpentry, Brixton, SW2	£21,888
M PIETROW T/A M P BUILDERS, Brixton, SW2	£21,864
Bantos Limited, Greater London, sw2	£21,944
Magic Projects London Ltd, 50A Palace Road, London, Greater London, SW2	£21,848
Adam-Ashton &associates Limited, Greater London, SW2	£21,944
Complete Construction London Limited, Streatham, SW2	£21,856
Build and Convert Services, 10 Streatleigh Parade, Streatham High Road, London, Greater London, SW16	£21,848
Basenet Ltd, London, SW4	£21,944
RenoView Ltd, Greater London, SW16	£21,944
William Coles, London, Surrey, SW16	£21,848
R C BUILDER, Balham, SW12	£21,864
Grosvenor House Construction Ltd., 112A Clapham Park Road, London, London, Greater London, sw4	£21,848
M. Watkins and Sons Ltd, Greater London, SW12	£21,944
Nova Renovation, Nova, London, SW16	£21,848
Damian Szlema Construction LTD, Leigham Avenue, Lond, SW16	£21,864
Studio Such, Greater London, SW16	£21,944
PEAKE Projects London Ltd, London, Greater London, SW16	£21,848
ASAP Renovation, 101 Clapham High St., Clapham, Greater London, SW4	£21,848
Gustav Building Services, London, Greater London, SW4	£21,848
Gustav Building Services, Greater London, SW4	£21,944
Barnard Interiors, London, Greater London, SW12	£21,944
BUILD TEAM, Clapham, SW4	£21,864
Sturdy Evolution Developments Ltd, London, Greater London, SW4	£21,848

Extend your SW2 with an extension

Flat roof extension cost in SW2

Estimates for common extension builder jobs in SW2;

Rates for other SW2 trades

Flat roof extension cost in SW2

Get extension builder rates instantly