Extend your YO51 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 YO51?

Build a flat roof extension cost in YO51 - Sort by rates or availability

D & D Builders

From £21,944

(last active 20/09/26)

Location

Leeds, LS7

Need an Extension Builder in YO51? D & D Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many yea...

J W Building Services

From £21,920

(last active 20/09/26)

Location

Leeds, LS8

Experienced extension builder ready to quote for your work. J W Building Services is the best extension builder in YO51. No obligation free quotes ...

full circle garden and design

From £21,840

(last active 18/09/26)

Location

Adel, LS16

Need to find an Extension Builder near you for all your extension buildering work?

full circle garden and design provides a local, trusted ...

Fearnville Driveways

From £21,632

(last active 15/09/26)

Location

Fearnville, LS8

Trusted and professional extension builder in YO51. Experienced in all extension buildering work and keeping within budget and on quote. Fearnville...

NE BUILDING SERVICES

From £21,808

(last active 04/09/26)

Location

Austhorpe, LS15

Trusted and professional extension builder in YO51. Experienced in all extension buildering work and keeping within budget and on quote. NE BUILDIN...

S & K Windows

From £21,720

(last active 17/08/26)

Location

Northallerton, DL6

S & K Windows are here to help customers who need an Extension Builder in YO51. We offer a competitive rate to complete all your extension builderi...

B A Moss Builders

From £21,280

(last active 29/07/26)

Location

York, YO61

Relax... you have found a reliable extension builder in YO51. B A Moss Builders is a friendly and reliable company based in YO51 who consider no jo...

PRC PROJECTS LTD

From £21,904

(last active 29/07/26)

Location

York, YO61

Need to find an Extension Builder near you for all your extension buildering work?

PRC PROJECTS LTD provides a local, trusted extension bui...

S & P Building & Landscaping

From £21,592

(last active 29/07/26)

Location

Heslington, YO10

S & P Building & Landscaping is an established and experienced local extension builder in YO51. Please contact us for a free, no obligation quote a...

Pete Nellis Builder

From £21,944

(last active 29/07/26)

Location

Heworth, YO31

Relax... you have found a reliable extension builder in YO51. Pete Nellis Builder is a friendly and reliable company based in YO51 who consider no ...

Flat roof extension cost in YO51

Estimates for build a flat roof extension near YO51

A flat roof extension ranges from the cheapest of £21,280 (B A Moss Builders based in YO61) to the dearest of £21,944 (D & D Builders based in LS7), 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 YO51 by posting a job with HaMuch. We'll send it to extension builders in YO51.


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 Harrogate£29£225
Build A Flat Roof Extension near York£30£229
Build A Flat Roof Extension near Chapeltown£30£232
Build A Flat Roof Extension near Leeds£31£236
Build A Flat Roof Extension near Beeston£31£236
Build A Flat Roof Extension near Shipley£29£226
Build A Flat Roof Extension near Pudsey£30£226
Build A Flat Roof Extension near Rothwell£30£230
Build A Flat Roof Extension near Selby£30£240
Build A Flat Roof Extension near Bingley£30£228

Estimates for common extension builder jobs in YO51;

Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building

Underpin a building - £17,258

Two storey extension

Two storey extension - £87,638

Build a timber frame extension

Build a timber frame extension - £25,758

Build a swimming pool

Build a swimming pool - £80,758

Single storey extension

Single storey extension - £50,168

Side return extension

Side return extension - £38,782

Install an RSJ

Install an RSJ - £1,958

Outbuilding

Outbuilding - £9,758

Build a Mansard loft conversion

Build a Mansard loft conversion - £51,758

Loft conversion

Loft conversion - £31,485

Build a kitchen extension

Build a kitchen extension - £41,758

Hip to gable loft conversion

Hip to gable loft conversion - £41,758

Granny annexe

Granny annexe - £86,758

Garden office

Garden office - £9,758

Convert a Garage

Convert a Garage - £15,758

Garage

Garage - £18,258

Build a flat roof extension

Build a flat roof extension - £21,758

Build a dormer loft conversion

Build a dormer loft conversion - £41,758

Concrete foundations

Concrete foundations - £6,008

Convert a bungalow loft

Convert a bungalow loft - £28,758

Convert a basement

Convert a basement - £34,782

More extensions & conversions cost guides...