Cost to build a flat roof extension in Lewisham

Flat roof extension cost in Lewisham

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 Lewisham?

A flat roof extension ranges from the cheapest of £21,832 (Rapid Bee Ltd based in SE12) to the dearest of £22,000 (RR'S Builders based in SE12), 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 Lewisham by posting a job with HaMuch. We'll send it to extension builders in Lewisham.

Estimates for flat roof extension near Lewisham

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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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	£17,393
	Build a two storey extension	£87,840
	Build a timber frame extension	£25,893
	Install a swimming pool	£80,893
	Cost to build a single storey extension	£52,869
	Cost to build a side return extension	£40,301
	Install an RSJ	£2,093
	Build an outbuilding	£9,893
	Build a mansard loft conversion	£51,893
	Cost of a loft conversion	£32,751
	Build a kitchen extension	£41,893
	Build a hip to gable loft conversion	£41,893
	Build a granny annexe	£86,893
	Build a garden office	£9,893
	Convert a garage	£15,893
	Build a new garage	£18,393
	Build a flat roof extension	£21,893
	Build a dormer loft conversion	£41,893
	Lay a concrete foundation	£6,143
	Convert a bungalow loft	£28,893
	Basement conversion cost	£36,301

Business name	Flat roof extension cost
AADO SERVICES LTD, Flat 2, 33 Campshill Road, London, Greater London, SE13	£21,848
Dule Vida Property Design Ltd, Greater London, SE13	£21,944
JBS BUILDERS, Lewisham, SE13	£21,864
TP Building & Development Services Ltd, London, Greater London, SE13	£21,848
Demiri Builder Ltd, London, SE13	£21,944
RR'S Builders, London, SE12	£22,000
Construction Surety, Greater London, SE13	£21,944
AZC BUILDING SERVICES, Greenwich, SE10	£21,864
SMS Construction Services Ltd, London, SE12	£21,944
S G Painting Contractor Ltd, Catford, SE6	£21,856
JEM BUILDING CONTRACTORS LTD, Grove Park, SE12	£21,864
Color Revolution Limited, Greater London, SE12	£21,944
Justin Bailey, Greater London, SE4	£21,944
South East Builders, London, SE4	£21,864
S W BUILDPROVEMENT, Greater London, SE6	£21,944
GREENWICH CONSTRUCTION, Grove Park, SE12	£21,856
Archteckbuild, Grove Park, SE12	£21,880
blitbolt ltd, Greater London, SE4	£21,944
blitbolt ltd, london, Greater London, SE4	£21,848
QUAYSTONE CONSTRUCTION LIMITED, Grove Park, SE12	£21,864
Rapid Bee Ltd, 58 Bramdean Crescent, Lee, London, Hertf, SE12	£21,832
J&S WALLINGTON LIMITED, Greater London, SE6	£21,936
CHRIS BALL & SON ROOFING LTD, Forest Hill, SE23	£21,856
RM Building (London) Ltd, Nr Forest Hill, SE23	£21,864
Therusso Limited, London, Kent, se9	£21,840

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Flat roof extension cost in Lewisham

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Flat roof extension cost in Lewisham

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