No, no, no.
If you enter a fixed price contract, and you think that's the only money you will have to pay for your new home, you either need to spend a good few hours reading the contract from cover to cover, taking notes, or you need to pay a solicitor to do it for you.
A lot of the questions and concerns that I read on this site are because the consumer is not fully understanding what they are entering into.
Why is a fixed price contract not a fixed price contract?
As the consumer, you must understand building projects are both ambiguous and uncertain. This means that a certain amount of risk is taken on for every project we do. Contracts exist to allocate the risk to one party of the contract - either the builder, or the client - not both.
So, some houses will need a boundary survey done - but not all. To keep the base cost of the house down, the builder will make this an 'extra' to the contract price. If you need a survey, you'll have to pay it. If you don't - you won't!
I'm going to quickly skim through a 'fixed price' HIA NSW Residential Building Contract for New Dwellings (Copyright HIA Ltd) and point out a few clauses that may be result in an extra charge:
1. Clause 10: Survey of the Site
2. Clause 12: Hidden Site Conditions
3. Clause 13: Other Costs
4. Clause 14: Contract Price Adjustments
5. Clause 16: Interest on Late Payments
6. Clause 17: Variations
7. Clause 20: Specified Materials
8. Clause 21: Prime Cost and Provisional Sum Items
9. Clause 23: Risk
10. Clause 27: Final Certificate
11. Clause 37: Debt Collection Costs
As you can see, there are quite a few clauses where a claim for more monies may be forthcoming. The consumer and builder are both fully aware of all these clauses prior to signing a contract.