Delay Costs Explained: How to calculate liquidated damages & prevent delays when building a home
Most people think delays are just part of building. Here's why that belief costs Australian homeowners $4,600 every month.
You've signed your building contract. Your builder says delays are "normal in this industry." You accept it because, well, everyone says the same thing.
But here's what nobody tells you: the biggest cost of delays isn't the inconvenience. It's the thousands of dollars you're losing every month because your contract wasn't set up to protect you from them.
Most homeowners I work with think delays are just bad luck or weather or supply chain issues. And sure, those things happen. But what really causes delays to blow out your budget is that your contract doesn't have the right protections in place before you sign.
The failed solution: trusting "industry standard" will protect you
Here's what usually happens. You get your HIA contract. Your builder says it's standard. You assume that means it's fair and that you're covered if things go wrong.
So you fill in the liquidated damages section. Maybe you put $100 per day because that sounds reasonable. Or maybe you leave it blank because you don't want to seem difficult.
Then your build runs three months late. You're paying rent and a construction loan at the same time. You're bleeding money. You go back to your contract hoping for relief, and you realise the daily rate you nominated doesn't even cover half your actual costs.
This happened to a client I worked with last year. She was losing $4,800 a month between her rental and loan interest. But she'd nominated $50 a day in liquidated damages because she didn't know how to calculate it properly. When the build ran four months late, she recovered less than $6,000 when her actual loss was over $19,000.
Your contract can prevent delays, not just compensate for them
Most people think liquidated damages are just about getting money back after a delay. But here's the insight that changes everything: a properly structured contract prevents delays from happening in the first place.
The building contract has surprising ways to avoid extra costs and delays. But only if you know what to look for before you sign.
When I do a Building Contract Health Check, I don't just help clients calculate the right liquidated damages rate. I show them the clauses that actually keep builds on track, like how extension of time clauses are worded, what triggers a valid delay claim, and how to structure progress payments so your builder has a real incentive to finish on time.
One client came to me after getting a standard HIA contract. We adjusted three key clauses around timeframes and payment schedules. Her build finished two weeks early. Not because her builder was a saint, but because the contract made it financially advantageous for him to stay on schedule.
Builders aren't trying to trick you. But they benefit from contracts that give them maximum flexibility and minimum consequences for delays. That's why "industry standard" contracts are written the way they are.
Understanding the contract is a superpower. Once you see how the pieces fit together, you realise you have way more control than you thought.
What to do next
If you're about to sign a building contract, don't just accept the template as is. Get it checked before you sign.
In a Building Contract Health Check, I walk through your specific contract and show you:
Where your contract allows for cost increases and delays
How to calculate liquidated damages that actually cover your losses
Which clauses to adjust so your build stays on track and on budget
Exactly what to ask your builder to change before you sign
A quality build comes from a quality contract. The cost of getting it wrong is thousands of dollars and months of stress. The cost of getting it right is one conversation before you sign.
Book your Building Contract Health Check here and protect your build before it starts.
Happy building,
Annelyse
Construction Management | M. Construction Law
