Cost to build a flat roof extension in East Dulwich

Flat roof extension cost in East Dulwich

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 East Dulwich?

A flat roof extension ranges from the cheapest of £21,600 (RCB Group Design & Build based in SE21) to the dearest of £24,800 (Chris Ellis Project Service based in SE5), 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 East Dulwich by posting a job with HaMuch. We'll send it to extension builders in East Dulwich.

Estimates for flat roof extension near East Dulwich

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?
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Can you walk on a flat roof extension?
What insulation do I need for a flat roof extension?

	Job	Estimate
	Underpinning a house	£17,500
	Build a two storey extension	£88,000
	Build a timber frame extension	£26,000
	Install a swimming pool	£81,000
	Cost to build a single storey extension	£55,006
	Cost to build a side return extension	£41,504
	Install an RSJ	£2,200
	Build an outbuilding	£10,000
	Build a mansard loft conversion	£52,000
	Cost of a loft conversion	£33,753
	Build a kitchen extension	£42,000
	Build a hip to gable loft conversion	£42,000
	Build a granny annexe	£87,000
	Build a garden office	£10,000
	Convert a garage	£16,000
	Build a new garage	£18,500
	Build a flat roof extension	£22,000
	Build a dormer loft conversion	£42,000
	Lay a concrete foundation	£6,250
	Convert a bungalow loft	£29,000
	Basement conversion cost	£37,504

Business name	Flat roof extension cost
The Perfectionist, East Dulwich, SE22	£21,888
J&S Property Services, Greater London, SE22	£21,944
FRIERN BUILDING LTD, East Dulwich, SE22	£21,864
Five Sextillion, London, SE22	£21,848
BERNARD CONSTRUCTION LTD, East Dulwich, SE22	£21,864
Global Business BoxLttd, Greater London, SE15	£21,944
P R CONSTRUCTION, Dulwich, SE21	£21,864
babar Jeweler Shop, Kent, SE21	£21,944
James Hall Property Solutions Ltd, Greater London, SE22	£21,944
1M Construction Ltd, Peckham, SE15	£21,864
Vidanov Building Services, Camberwell, SE5	£21,888
Casa Of Peckham London, London, SE15	£21,944
Chris Ellis Project Service, London, SE5	£24,800
RM Building (London) Ltd, Nr Forest Hill, SE23	£21,864
CHRIS BALL & SON ROOFING LTD, Forest Hill, SE23	£21,856
NKD Contractors, 65 Dartmouth Road, Forest Hill, London, Greater London, SE23	£21,848
HUT Projects, Greater London, se15	£21,944
STOYANOV CONSTRUCTION LTD, Forest Hill, SE23	£21,864
By design - interior styling and remodelling, London, Se26	£21,944
Baseline Build & Renovate, London, Greater London, SE15	£21,848
South East Builders, London, SE4	£21,864
Justin Bailey, Greater London, SE4	£21,944
Create Bespoke, Greater London, SE21	£21,944
Atelier 10, Brixton, SW2	£21,888
RCB Group Design & Build, London, SE21	£21,600

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Flat roof extension cost in East Dulwich

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Flat roof extension cost in East Dulwich

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