Cost to build a flat roof extension in Dulwich

Flat roof extension cost in 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 Dulwich?

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 Dulwich by posting a job with HaMuch. We'll send it to extension builders in Dulwich.

Estimates for flat roof extension near 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?
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	£17,408
	Build a two storey extension	£87,862
	Build a timber frame extension	£25,908
	Install a swimming pool	£80,908
	Cost to build a single storey extension	£53,157
	Cost to build a side return extension	£40,463
	Install an RSJ	£2,108
	Build an outbuilding	£9,908
	Build a mansard loft conversion	£51,908
	Cost of a loft conversion	£32,886
	Build a kitchen extension	£41,908
	Build a hip to gable loft conversion	£41,908
	Build a granny annexe	£86,908
	Build a garden office	£9,908
	Convert a garage	£15,908
	Build a new garage	£18,408
	Build a flat roof extension	£21,908
	Build a dormer loft conversion	£41,908
	Lay a concrete foundation	£6,158
	Convert a bungalow loft	£28,908
	Basement conversion cost	£36,463

Business name	Flat roof extension cost
Create Bespoke, Greater London, SE21	£21,944
babar Jeweler Shop, Kent, SE21	£21,944
RCB Group Design & Build, London, SE21	£21,600
Parallax Project Management, Greater London, SE27	£21,944
St Ives Decor, Greater London, SE27	£21,944
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
BERNARD CONSTRUCTION LTD, East Dulwich, SE22	£21,864
JM Property Maintenance, Salters Hill, SE19	£21,848
Buci builders ltd, London, SE27	£22,400
Universal Plastering Ltd, Greater London, SE19	£21,944
FRIERN BUILDING LTD, East Dulwich, SE22	£21,864
Adam-Ashton &associates Limited, Greater London, SW2	£21,944
P R CONSTRUCTION, Dulwich, SE21	£21,864
Alta London Design & Project Management, Greater London, SE27	£21,944
Five Sextillion, London, SE22	£21,848
By design - interior styling and remodelling, London, Se26	£21,944
Atelier 10, Brixton, SW2	£21,888
Magic Projects London Ltd, 50A Palace Road, London, Greater London, SW2	£21,848
Bantos Limited, Greater London, sw2	£21,944
Greene, Surrey, Se19	£21,944
NKD Contractors, 65 Dartmouth Road, Forest Hill, London, Greater London, SE23	£21,848
The Perfectionist, East Dulwich, SE22	£21,888
Complete Construction London Limited, Streatham, SW2	£21,856
J&S Property Services, Greater London, SE22	£21,944

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Flat roof extension cost in Dulwich

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Flat roof extension cost in Dulwich

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