Southsea two storey extensions from £87,628

A two storey extension is a great way to add extra space to your home, adding value to your property. But how much does it cost to build a double storey extension in Southsea? To see prices and availability for your job click green button.

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From £88,216

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 £87,964

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 £89,644

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 £88,120

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 £87,988

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 £87,628

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 £87,952

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 £87,964

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 £87,904

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 £88,264

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...

Cost of a two storey extension in Southsea

Estimates for two storey extension near Southsea

Costs range from £87,628 (Park Building Services Ltd based in PO9) to £89,644 (R&B Property Improvements based in PO9), but these are just estimates. The best way to compare costs is to get real quotes from real builders.

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"Two storey extension" - PORTSMOUTH, job posted 07/08/25


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...