Cost to build a flat roof extension in SE26

Flat roof extension cost in SE26

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 SE26?

A flat roof extension ranges from the cheapest of £21,600 (RCB Group Design & Build based in SE21) to the dearest of £21,944 (By design - interior styling and remodelling based in Se26), 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 SE26 by posting a job with HaMuch. We'll send it to extension builders in SE26.

Estimates for flat roof extension near SE26

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	£17,365
	Build a two storey extension	£87,797
	Build a timber frame extension	£25,865
	Install a swimming pool	£80,865
	Cost to build a single storey extension	£52,293
	Cost to build a side return extension	£39,977
	Install an RSJ	£2,065
	Build an outbuilding	£9,865
	Build a mansard loft conversion	£51,865
	Cost of a loft conversion	£32,481
	Build a kitchen extension	£41,865
	Build a hip to gable loft conversion	£41,865
	Build a granny annexe	£86,865
	Build a garden office	£9,865
	Convert a garage	£15,865
	Build a new garage	£18,365
	Build a flat roof extension	£21,865
	Build a dormer loft conversion	£41,865
	Lay a concrete foundation	£6,115
	Convert a bungalow loft	£28,865
	Basement conversion cost	£35,977

Business name	Flat roof extension cost
Albion Roofing Solutions, 2 Dacres Road, Forest Hill, London, Grea, SE23	£21,840
By design - interior styling and remodelling, London, Se26	£21,944
NKD Contractors, 65 Dartmouth Road, Forest Hill, London, Greater London, SE23	£21,848
Pure Building & Maintenance Services Limited, Surrey, SE26	£21,944
STOYANOV CONSTRUCTION LTD, Forest Hill, SE23	£21,864
Baseline Build and Renovate Ltd, 87 Selworthy Road, London, London, SE6	£21,840
Ruspi Ltd, London, SE20	£21,936
Smartroofingbuildingcontractorsltd, 00 Royston road, London, Greater London, Se20	£21,840
Universal Plastering Ltd, Greater London, SE19	£21,944
CHRIS BALL & SON ROOFING LTD, Forest Hill, SE23	£21,856
CROMARTY CONSTRUCTION, Beckenham, BR3	£21,856
RM Building (London) Ltd, Nr Forest Hill, SE23	£21,864
Mesoni Ltd, London, Greater London, SE19	£21,848
Glenn Miller Builders Limited, 141 Mackenzie Road, Beckenham, Kent, BR3	£21,832
LivingFunky, Stambourne Way, London, Greater London, SE19	£21,840
Urban London Development, 242 Gipsy Road, London, Greater London, SE27	£21,848
Martin's Builders & Decorators, 237 Gipsy Road, West Norwood, London, Greater London, SE27	£21,848
South London Conversions Ltd., London, SE19	£21,848
Pure building, Kent, BR3	£21,936
BERNARD CONSTRUCTION LTD, East Dulwich, SE22	£21,864
Parallax Project Management, Greater London, SE27	£21,944
RCB Group Design & Build, London, SE21	£21,600
JM Property Maintenance, Salters Hill, SE19	£21,848
Hatfield-Marcus, London, Greater London, BR3	£21,840
GreenGauge Heating Limited, Greater London, SE6	£21,944

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Flat roof extension cost in SE26

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Flat roof extension cost in SE26

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