Add an outbuilding to your property in Portslade from £9,768

Outbuildings are the perfect way to add extra space to your property when you need a bit of quiet from the main house. Whether it's for a garden office, gym or workshop, an outbuilding can add value to your home and increase your quality of life. To see prices and availability for your job click green button.

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From £10,800

Rates updated Oct 26
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RA Construction

Ricky Alexander

Trusted and professional extension builder in Portslade. Experienced in all extension buildering work and keeping within budget and on quote. RA Co...

From £10,024

Rates verified Oct 26
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Ferguson Building Services Limited

Ferguson Building Services Limited is an established and experienced local extension builder in Portslade. Please contact us for a free, no obligat...

From £9,768

Last active Nov 26
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Graeme Davies Plumbing and Heating

Graeme Davies

Experienced extension builder ready to quote for your work. Graeme Davies Plumbing and Heating is the best extension builder in Portslade. No oblig...

From £9,984

Last active Oct 26
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FIRST FORMAT BUILDING

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

FIRST FORMAT BUILDING provides a local, trusted extensio...

From £10,176

Last active Oct 26
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East West Refurbishment Limited

Need an Extension Builder in Portslade? East West Refurbishment Limited has been helping local clients (20 mile radius) with their extension builde...

From £9,856

Last active Oct 26
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Citadel Construction

Citadel Construction is an established extension buildering business in Portslade. We come highly recommended and provide competitive quotes for yo...

From £9,840

Last active Oct 26
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SIX STUDI? DESIGN

The studio is based on our founder's vision in concept and interior design, Fabio Lauro has long been in the business of creating atmospheres. His ...

From £9,992

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H P Building Services Sussex

Member since August 2026

H P Building Services Sussex is a one-stop solution for all your extension buildering needs. Establish over 10 years ago and covering 20 miles arou...

From £10,296

Last active Oct 26
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Proper Copper Design

Proper Copper DesignWe are a design lead copper homeware company specializing in contemporary handles, taps, showers and accessories. Our products ...

From £9,992

Last active Oct 26
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Brighton Marina Hand Car Wash

Experienced extension builder ready to quote for your work. Brighton Marina Hand Car Wash is the best extension builder in Portslade. No obligation...

Outbuilding cost in Portslade

Estimates for outbuilding near Portslade

Outbuilding costs in Portslade range from the cheapest of £9,768 (Graeme Davies Plumbing and Heating based in BN3) to the dearest of £10,800 (RA Construction based in BN2), but these are just estimates.

Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.

Get rates and quotes to build an outbuilding in Portslade by posting a job with HaMuch and we will send it to extension builders.


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Outbuilding near Shoreham-by-Sea£36£250
Outbuilding near Brighton£35£253
Outbuilding near Brighton and Hove£35£252
Outbuilding near Lancing£36£249
Outbuilding near Worthing£35£249
Outbuilding near Burgess Hill£36£256
Outbuilding near Haywards Heath£35£256
Outbuilding near Rustington£35£242
Outbuilding near Mid Sussex£35£261
Outbuilding near Littlehampton£35£241

Estimates for common extension builder jobs in Portslade;

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...