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WA Cost Plus Contract Updates

What members need to know

Regional News

WA Cost Plus Contract Updates

What members need to know

Regional News
The WA Cost Plus Contract has been updated to improve clarity, accuracy and usability for builders. Changes include revised contract schedule items, updated document references and a new clause covering contract interpretation and document precedence.
Housing Industry Association (HIA) is Australia's largest residential building association, committed to keeping members up to date and on the pulse of the ever changing building and business landscape.  

Member's get unlimited access to news, content, resources and more...

Joining Australia’s largest national association for the residential building industry, gives you access to a huge range of industry products and business services to manage, operate and grow your business.
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Breaking news
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04 Jun
HIA calls for draconian law to be withdrawn

The Housing Industry Association (HIA) is calling on the Victorian Government to withdraw proposed legislation that will expose home builders to fines over $10,000 if they fail to get the right paperwork to their client before conducting extra building work the client has asked them to do.

04 Jun
HIA Member Survey - proposed CPD changes

CBOS has recently briefed HIA on a proposed new ‘Prescribed CPD Model’ for the industry starting with plumbers, electricians and gasfitters in Tasmania.

03 Jun
New Modular Housing Finance Guarantee announced

Today the Tasmanian Government announced a Modular Housing Finance Guarantee aimed at improving access to finance for modular and prefabricated homes.

03 Jun
Matter: MS2026/1–Proposed changes to the Road Transport Contractual Chain Supply Order

HIA’s response to the Proposed Changes to the Road Transport Contractual Chain Supply Order on fuel recovery costs.

WA Cost Plus Contract

This contract is used for residential building works on a cost plus basis, not a lump sum ‘fixed price’. Costs are totalled and a percentage or fixed ...

WA Addenda to Specification - Form 12

This addenda is sold separately from the WA General Housing Specifications (Form 7). These two items make up a set, although some builders have the HI...

WA Claim for Extension of Time - Form 5 (Pad of 30)

Builders wanting an extension of time for completing work will need this WA Claim for Extension of Time pad, which includes 30 sheets. This product co...

WA Practical Completion Certificate - Form 14 (Pad of 30)

The Western Australian Certificate of Practical Completion (pad of 30) enables builders to list work that may be required following a joint pre-handov...

WA Job Quotation - Form 9 (Pad of 25)

The Western Australian Job Quotation Form (pad of 25) is suitable for sub-contractors to list their conditions. It's carbonised and individually numbe...

WA Alterations & Additions Contract - Form 38E (Pack of 2)

The WA Alterations & Additions Contract – Form 38E (pack of two) is designed specifically for use on alterations, additions and renovations over $7500...

WA Pre-Fabricated Homes Contract - Form 45C (Pack of 2)

The WA Pre-fabricated Homes Contract – Form 45C (pack of two) has been designed specifically for use with modular or transportable homes.

WA General Housing Specifications - Form 7 (Pack of 2)

The WA General Housing Specifications - Form 7 (pack of two) provides a detailed description of quality of materials or workmanship, working drawings,...

WA Variation to Contract - Form 1 (Pad of 30)

The WA Variation to Contract – Form 1 details changes or variations to works requiring an update to the contract between builder and owner. It can als...

WA Small Works Contract - Form 10A (Pad of 25)

The WA Small Works contract (pad of 25 and in duplicate) has been designed specifically for projects $7500 in value or less (where the Home Building C...