Extend your Southsea 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 Southsea? To see prices and availability for your job click green button.

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From £22,144

Last active Nov 26
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SBS Building Services

Steve Bannister

We are a small family run business with over 20 years experience in brickwork, bathroom/kitchen fitting, roofing, landscaping, fencing, tiling and ...

From £21,976

Last active Nov 26
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O NEILL CONSTRUCTION LTD

O NEILL CONSTRUCTION LTD is an established extension buildering business in Southsea. We come highly recommended and provide competitive quotes for...

From £23,096

Last active Nov 26
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R&B Property Improvements

Chris Bond

We are a Small Family run business with over 30 years experience in the building trade, Carpentry is my main trade, with NVQ Level 2.

From £22,080

Last active Oct 26
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Devscapes

Devscapes is an established extension buildering business in Southsea. We come highly recommended and provide competitive quotes for your work.

...

From £21,992

Last active Oct 26
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Oakstone Developments

Rob Butler

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

Oakstone Developments provides a local, trusted extensio...

From £21,752

Last active Sep 26
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Park Building Services Ltd

Park Building Services Ltd is a trusted extension builder serving customers in Southsea and the surrounding area. Contact us to today to get a comp...

From £21,968

Last active Jul 26
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Shepperd Developments

Experienced extension builder ready to quote for your work. Shepperd Developments is the best extension builder in Southsea. No obligation free quo...

From £21,976

Last active Jul 26
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Portsmouth Building Repairs

Location

Southsea, PO4

Experienced extension builder ready to quote for your work. Portsmouth Building Repairs is the best extension builder in Southsea. No obligation fr...

From £21,936

Last active Jul 26
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Peter Fenn Property

Peter Fenn Property is a trusted extension builder serving customers in Southsea and the surrounding area. Contact us to today to get a competitive...

From £22,176

Last active Jul 26
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JKS Property

Location

Southsea, PO5

JKS Property is an established and experienced local extension builder in Southsea. Please contact us for a free, no obligation quote and competiti...

Flat roof extension cost in Southsea

Estimates for build a flat roof extension near Southsea

A flat roof extension ranges from the cheapest of £21,752 (Park Building Services Ltd based in PO9) to the dearest of £23,096 (R&B Property Improvements based in PO9), 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 Southsea by posting a job with HaMuch. We'll send it to extension builders in Southsea.


Estimates for common extension builder jobs in Southsea;

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.

More extensions & conversions cost guides...