Cost to build a flat roof extension in SE2

Extend your SE2 with an extension

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 SE2?

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Flat roof extension cost in SE2

A flat roof extension ranges from the cheapest of £21,808 (D & G Construction LTD based in DA17) to the dearest of £22,560 (S M G Building Contractors based in SE18), 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 SE2 by posting a job with HaMuch. We'll send it to extension builders in SE2.

Estimates for build a flat roof extension near SE2

	Job	Estimate
	Cost to underpin a house	£17,386
	Build a two storey extension	£87,829
	Cost to build a timber frame extension	£25,886
	Cost to build a swimming pool	£80,886
	Cost to build a single storey extension	£52,715
	Cost to build a side return extension	£40,215
	Cost to Install an RSJ	£2,086
	Build an outbuilding	£9,886
	Cost to build a mansard loft conversion	£51,886
	Cost of a loft conversion	£32,679
	Cost to build a kitchen extension	£41,886
	Build a hip to gable loft conversion	£41,886
	Build a granny annexe	£86,886
	Build a garden office	£9,886
	Cost of a garage conversion	£15,886
	Build a new garage	£18,386
	Cost to build a flat roof extension	£21,886
	Cost to build a dormer loft conversion	£41,886
	Lay a concrete foundation	£6,136
	Cost of a bungalow loft conversion	£28,886
	Basement conversion cost	£36,215

Business name	Build a flat roof extension cost
Liviu Toma, Abbey Wood, SE2	£21,848
K K BUILDER UK LTD, Abbey Wood, SE2	£21,848
C B BUILDING CONSTRUCTION, Belvedere, DA17	£21,848
Multi-Tech Homes Global Ltd, Bexleyheath, Kent, DA7	£21,832
RSM BUILDING CONTRACTORS, Barnehurst, DA7	£21,848
A3 BUILDING SERVICES, Belvedere, DA17	£21,848
R H Multitrade, Belvedere, DA17	£21,848
GHOOSE LTD, Greater London, se28	£21,928
Danni Building Services Ltd, Bexleyheath, DA7	£21,872
Builders Team, Unit 7, Kencot way, London, Greater London, DA18	£21,824
Satau Construction Works Ltd, Thamesmead, SE28	£21,848
OAKDENE BUILDING SERVICES, Belvedere, DA17	£21,848
S M G Building Contractors, London, SE18	£22,560
Keane & Sons Paving, Thamesmead, SE28	£21,848
PFM General Building Services Ltd, London, SE18	£21,920
NEW BUILD MAINTENANCE LTD, Belvedere, DA17	£21,848
Mormacgroup, Kent, DA7	£21,928
Great britton builders, London, SE28	£21,880
Liam Kinsella Ltd, Barnehurst, DA7	£21,848
Osborne Building, Welling, DA16	£21,848
Builder.Special, Welling, DA16	£21,848
D & G Construction LTD, 118 Norman Road, Belvedere, Kent, DA17	£21,808
Thomas Welch & Sons, 32 Landstead Road, Plumstead, London, Lo, SE18	£21,832
Lover Build, Kent, DA16	£21,928
All Division Building Ltd - Refurbishment Specialists, Welling, DA16	£21,808

Extend your SE2 with an extension

Flat roof extension cost in SE2

Estimates for common extension builder jobs in SE2;

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Build a flat roof extension cost in SE2

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