Add an outbuilding to your property in BN17 from £9,752

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.

Outbuilding cost in BN17 - Sort by rates or availability

From £11,096

(last active 05/10/26)
Get quotes

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 £10,440

(last active 01/10/26)
Get quotes

Main Construction

Gerry

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

Main Construction provides a local, trusted extension bu...

From £10,008

(last active 01/10/26)
Get quotes

Whites Carpentry & Building

Whites Carpentry & Building prides in delivering an excellent extension buildering service and value for money in BN17 and the surrounding areas. ...

From £9,872

(last active 29/09/26)
Get quotes

MPS Home Improvements Ltd

Need an Extension Builder in BN17? MPS Home Improvements Ltd has been helping local clients (20 mile radius) with their extension buildering jobs f...

From £9,992

Member since August 2026

Get quotes

H P Building Services Sussex

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 £10,168

(last active 22/09/26)
Get quotes

R S Construction (Surrey)

R S Construction (Surrey) is an established extension buildering business in BN17. We come highly recommended and provide competitive quotes for yo...

From £10,112

(last active 19/09/26)
Get quotes

Futureways Design and Build

Futureways Design and Build are here to help customers who need an Extension Builder in BN17. We offer a competitive rate to complete all your exte...

From £9,752

(last active 19/09/26)
Get quotes

Park Building Services Ltd

Park Building Services Ltd is a trusted extension builder serving customers in BN17 and the surrounding area. Contact us to today to get a competit...

From £10,200

(last active 18/09/26)
Get quotes

Alan Pacy Builder

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

From £10,376

(last active 18/09/26)
Get quotes

GD Project Management Ltd

Giles Dixon is an experienced Project Manager with over 30 years experience, having worked from the ground up starting in 1984 as an apprentice ele...

Outbuilding cost in BN17

Estimates for outbuilding near BN17

Outbuilding costs in BN17 range from the cheapest of £9,752 (Park Building Services Ltd based in PO9) to the dearest of £11,096 (R&B Property Improvements based in PO9), 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 BN17 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 Littlehampton£35£244
Outbuilding near Rustington£36£246
Outbuilding near Arun£35£241
Outbuilding near Bognor Regis£35£247
Outbuilding near Worthing£35£251
Outbuilding near Lancing£37£251
Outbuilding near Chichester£34£242
Outbuilding near Shoreham-by-Sea£36£250
Outbuilding near Brighton£35£251
Outbuilding near Brighton and Hove£35£251

Estimates for common extension builder jobs in BN17;

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...