Extend your IP9 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 IP9? To see prices and availability for your job click Get quotes.

HaMuch is Excellent

Build a flat roof extension cost in IP9 - Sort by rates or availability

From £21,800

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James Francis

Trusted and professional extension builder in IP9. Experienced in all extension buildering work and keeping within budget and on quote. James Franc...

From £22,112

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San Diego Construction Inc

San Diego Construction Custom Homes has experience building homes in the UK, Canada and the United States since 1999. It was founded on quality and...

Flat roof extension cost in IP9

Estimates for build a flat roof extension near IP9

A flat roof extension ranges from the cheapest of £21,800 (James Francis based in IP3) to the dearest of £22,112 (San Diego Construction Inc based in IP3), 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 IP9 by posting a job with HaMuch. We'll send it to extension builders in IP9.


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Estimates for common extension builder jobs in IP9;

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.

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