Extend your DL1 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 DL1?

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Flat roof extension cost in DL1

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 DL1?

A flat roof extension ranges from the cheapest of £20,800 (Weathersealed UK based in DL1) to the dearest of £21,920 (Heritage NE Ltd based in DL17), 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 DL1 by posting a job with HaMuch. We'll send it to extension builders in DL1.

Estimates for build a flat roof extension near DL1

Estimates for common extension builder jobs in DL1;

JobEstimate
Cost to underpin a house£17,094
Build a two storey extension£87,391
Cost to build a timber frame extension£25,594
Cost to build a swimming pool£80,594
Cost to build a single storey extension£46,878
Cost to build a side return extension£36,932
Cost to Install an RSJ£1,794
Build an outbuilding£9,594
Cost to build a mansard loft conversion£51,594
Cost of a loft conversion£29,943
Cost to build a kitchen extension£41,594
Build a hip to gable loft conversion£41,594
Build a granny annexe£86,594
Build a garden office£9,594
Cost of a garage conversion£15,594
Build a new garage£18,094
Cost to build a flat roof extension£21,594
Cost to build a dormer loft conversion£41,594
Lay a concrete foundation£5,844
Cost of a bungalow loft conversion£28,594
Basement conversion cost£32,932
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Rates for other DL1 trades

Appliance Repair Specialist
Bathroom Fitter
Builder
Carpenter and Joiner
Cleaner
Conservatory Specialist
Door Fitter
Drain Specialist
Driveway Specialist
Electrician
Extension Builder
Fencer
Fire and Security Specialist
Flooring Specialist
Gardener
Handyman
Heating Engineer
Kitchen Fitter
Landscaper
Painter and Decorator
Patio and Path Specialist
Plasterer
Plumber
Removals and Storage
Roofer
Tiler
Window Fitter
Build a flat roof extension cost in DL1
Estimate Build a flat roof extension cost in DL1 based on hourly/daily rate (excluding VAT or callout charges)
Business name Build a flat roof extension cost
pidesigns, County Durham, DL1 £21,728
D & G Builders, Darlington West, DL3 £21,632
Weathersealed UK, Darlington, DL1 £20,800
Darlington Building Services, Darlington, DL1 £21,400
Under Pressure, County Durham, DL2 £21,712
Partek Site Services, Darlington, DL2 £21,600
ANWEN CONSTRUCTION, Newton Aycliffe, DL5 £21,608
AEJ Paving, Preston-on-Tees, TS18 £21,648
Empire Building Contracts, Preston-on-Tees, TS18 £21,648
Thompson Construction, Stockton on tees, TS17 £21,600
Northern Roofline Solutions, Bishop Auckland, DL14 £21,624
Turners Roofing Services, 46 Seymour Street, Bishop Auckland, Bish, DL14 £21,600
Lee Construction (LDG) Ltd, Richmond, DL10 £21,536
Design Consultancy & Construction Services Ltd, Tyne & Wear, TS18 £21,680
Victory Procurement Solutions , Richmond, DL10 £21,592
D. Simpson Roof Rite Services, Toronto, Bishop Auck, DL14 £21,640
GURKHA CONSTRUCTION SVCS LTD, Richmond, DL10 £21,544
Heritage NE Ltd, Co durham, DL17 £21,920
P J N Builders, Trimdon, TS29 £21,664
S & K Windows, Standard Way Industrial Estate, 9 Barker, DL6 £21,520
Wall & Ceilings Solutions, Hemlington, TS8 £21,656
Darren Collin Joinery, Northallerton , DL7 £21,440
Croft-Hill Building & Joinery, Crook & Willington, DL15 £21,640
J.collinson, County Durham, DL13 £21,760
SBC (BUILDERS) LIMITED, Crook & Willington, DL15 £21,656

Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Build A Flat Roof Extension near Darlington£53£194
Build A Flat Roof Extension near Newton Aycliffe£34£200
Build A Flat Roof Extension near Stockton-on-Tees£35£201
Build A Flat Roof Extension near Ingleby Barwick£36£202
Build A Flat Roof Extension near Thornaby-on-Tees£36£202
Build A Flat Roof Extension near Bishop Auckland£34£218
Build A Flat Roof Extension near Billingham£37£208
Build A Flat Roof Extension near Spennymoor£33£220
Build A Flat Roof Extension near Middlesbrough£36£202
Build A Flat Roof Extension near Eston£35£215