Add an outbuilding to your property in PO20 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 PO20 - Sort by rates or availability

R&B Property Improvements

From £11,096

(last active 01/10/26)

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.

SBS Building Services

From £10,144

(last active 28/09/26)

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

H P Building Services Sussex

From £9,992

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...

Futureways Design and Build

From £10,112

(last active 19/09/26)

Location

, BN18

Futureways Design and Build are here to help customers who need an Extension Builder in PO20. We offer a competitive rate to complete all your exte...

Park Building Services Ltd

From £9,752

(last active 19/09/26)

Park Building Services Ltd is a trusted extension builder serving customers in PO20 and the surrounding area. Contact us to today to get a competit...

Main Construction

From £10,440

(last active 19/09/26)

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

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

Alan Pacy Builder

From £10,200

(last active 18/09/26)

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

GD Project Management Ltd

From £10,376

(last active 18/09/26)

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...

Regent Property Holdings Ltd

From £10,128

(last active 18/09/26)

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

Stretch My Home Ltd

From £9,880

(last active 18/09/26)

Trusted and professional extension builder in PO20. Experienced in all extension buildering work and keeping within budget and on quote. Stretch My...

Outbuilding cost in PO20

Estimates for outbuilding near PO20

Outbuilding costs in PO20 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 PO20 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 Chichester£34£242
Outbuilding near Bognor Regis£35£247
Outbuilding near Arun£35£241
Outbuilding near Havant & Waterloo£35£248
Outbuilding near Havant£35£249
Outbuilding near Littlehampton£35£244
Outbuilding near Rustington£36£246
Outbuilding near Waterlooville£36£250
Outbuilding near Horndean£35£253
Outbuilding near Portsmouth£36£250

Estimates for common extension builder jobs in PO20;

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...