Cost to build a flat roof extension in CF31

Extend your CF31 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 CF31?

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Flat roof extension cost in CF31
Build a flat roof extension cost in CF31
Estimates for common extension builder jobs in CF31;

Flat roof extension cost in CF31

A flat roof extension ranges from the cheapest of £21,368 (Excel Home Design Ltd based in CF39) to the dearest of £22,000 (Blueprint Construction & Development Ltd based in CF62), 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 CF31 by posting a job with HaMuch. We'll send it to extension builders in CF31.

Estimates for build a flat roof extension near CF31

Estimates for common extension builder jobs in CF31;

Rates for other CF31 trades

Build a flat roof extension cost in CF31

Estimate Build a flat roof extension cost in CF31 based on hourly/daily rate (excluding VAT or callout charges)
Business name	Build a flat roof extension cost
WH Builders, Bridgend, CF31	£21,512
Scorpion Windows LTD, North Road Bridgend Industrial Estate, Bridgend, South Glamorgan, CF31	£21,416
SP Property Maintenance, Pencoed, CF35	£21,456
S J S Services (Wales) Ltd, Pontyclun, CF72	£21,440
Price Builders, Cowbridge, CF71	£21,488
DEAN THOMAS BUILDING, Cowbridge, CF71	£21,456
Cwtch Property Developments, Maesteg, CF34	£21,504
J.S. Builders, Rhondda Cynon Taff, CF39	£21,544
Excel Home Design Ltd, St Georges, Mill Street, Tonyerfail, Rho, CF39	£21,368
WESTGATE BUILDING SERVICES LTD, Pontyclun, CF72	£21,472
Complete Building Contractors, Maesteg, CF34	£21,504
RJ CONSTRUCTION, Tonypandy, CF40	£21,456
K.D.L Property Maintenance, Bryn, SA13	£21,528
SS BUILDER, Bryn, SA13	£21,488
Mr, Barry, Cf62	£21,600
P ALLEN BUILDERS, Pontypridd, CF37	£21,464
G Wager Building Maintenance, Bryn, SA13	£21,432
L E JONES BUILDER, Ferndale, CF43	£21,472
OLYNPAIDD M & E 2008 LTD, Barry , CF62	£21,920
EXTEND & BUILD LTD, Pontypridd, CF37	£21,472
GRE BUILDING SERVICES, Ely, CF5	£21,472
A POWELL CONSTRUCTION LTD, Aberdare, CF44	£21,456
HALL & HARRIS CONSTRUCTION, Tonna, SA11	£21,520
Blueprint Construction & Development Ltd, Barry, CF62	£22,000
Elite Building Contractors South Wales, Cardiff, Cf5	£21,560

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Location in UK	Hourly Rate	Daily Rate
Build A Flat Roof Extension near Bridgend	£27	£170
Build A Flat Roof Extension near Pyle	£30	£234
Build A Flat Roof Extension near Porthcawl	£29	£228
Build A Flat Roof Extension near Maesteg	£32	£239
Build A Flat Roof Extension near Vale of Glamorgan	£26	£191
Build A Flat Roof Extension near Rhondda	£27	£183
Build A Flat Roof Extension near Port Talbot	£26	£188
Build A Flat Roof Extension near Rhondda, Cynon, Taff	£27	£183
Build A Flat Roof Extension near Church Village	£30	£188
Build A Flat Roof Extension near Pontypridd	£29	£184

	Job	Estimate
	Cost to underpin a house	£17,020
	Build a two storey extension	£87,280
	Cost to build a timber frame extension	£25,520
	Cost to build a swimming pool	£80,520
	Cost to build a single storey extension	£45,400
	Cost to build a side return extension	£36,100
	Cost to Install an RSJ	£1,720
	Build an outbuilding	£9,520
	Cost to build a mansard loft conversion	£51,520
	Cost of a loft conversion	£29,250
	Cost to build a kitchen extension	£41,520
	Build a hip to gable loft conversion	£41,520
	Build a granny annexe	£86,520
	Build a garden office	£9,520
	Cost of a garage conversion	£15,520
	Build a new garage	£18,020
	Cost to build a flat roof extension	£21,520
	Cost to build a dormer loft conversion	£41,520
	Lay a concrete foundation	£5,770
	Cost of a bungalow loft conversion	£28,520
	Basement conversion cost	£32,100