Which is better in Sydney: open book or fixed price contracts?

Open book offers transparency and flexibility but shifts cost risk to the owner. Fixed price offers budget certainty but usually includes higher contingencies and may result in variation disputes. A hybrid can balance both.

How can I avoid budget blowouts when building in Sydney?

Use detailed contracts, insist on itemised allowances, adopt a client portal for real-time costs, and factor in compliance items early—BASIX, BAL ratings, and council levies.

What digital tools help with cost transparency?

Platforms like Buildertrend, Procore, Buildxact, and CoConstruct provide live budget tracking, variation workflows, document storage, and progress reporting for builders and clients.

Do Sydney council levies and BASIX significantly affect cost?

Yes. Section 7.11 contributions, BASIX/NatHERS, and in some areas BAL requirements can add tens of thousands of dollars. These should be scoped and priced at the outset.

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