What to Do If You Receive a Variation Notice from your Builder

3 Feb

Written By Build Together Project Management

You just got an email from your builder asking for more money. Your stomach drops.

Most people do what seems logical: they call the builder, ask for an explanation, maybe push back a bit, then reluctantly agree because they don't want to rock the boat or delay the build.

But here's what no one tells you: the moment you receive that variation notice, the most important thing isn't what your builder says. It's what your contract says.

And most people never look.

Why "just talking it through" with your builder doesn't protect you

I've seen this play out dozens of times. A builder sends a variation notice. The homeowner thinks, "We have a good relationship, I'll just ask them about it." The builder explains that costs have gone up, materials are delayed, or something unexpected happened on site.

It all sounds reasonable. So the homeowner signs off.

Three months later, another variation comes through. Then another. By the end of the build, they've paid $40,000 more than they budgeted for, and half of those costs could have been challenged if they'd known what was actually in their contract.

Here's the truth: your builder isn't trying to trick you. But they also aren't going to tell you about the clauses in your contract that protect you from paying for certain things.

That's your job to know.

What your contract actually says about variations (and why it matters)

Most building contracts have very specific rules about when a builder can ask for more money. But if you don't know what those rules are, you can't use them.

For example, in contracts under $500,000, cost escalation clauses (where the builder passes on inflation or wage increases) aren't even allowed without explicit approval from Consumer Affairs Victoria. But builders still try to include them, and homeowners approve them without realizing they didn't have to.

Or take this: your contract probably requires the builder to provide evidence that they've done everything possible to minimize the cost increase or delay. But most homeowners never ask for that evidence because they don't know it's a requirement.

The contract is full of these protections. But only if you actually use them.

The real power move when you get a variation notice

Last year, I worked with a client named Sarah. She was building her second home in regional Victoria and got hit with a variation notice halfway through the build. The builder wanted an extra $18,000 for "unforeseen site works."

Sarah's first instinct was to call the builder and negotiate. But before she did, we looked at her contract together.

Turns out, the contract required the builder to provide written evidence of the unforeseen condition and proof that they'd taken steps to minimize the cost. The builder hadn't provided either.

We sent a simple email requesting the documentation as per the contract terms. The builder came back with a revised notice for $6,500. Sarah saved $11,500 just by knowing what her contract entitled her to ask for.

That's the difference between hoping your builder is being fair and actually knowing your rights.

What to do the moment you receive a variation notice

Here's what I tell every client: before you respond to the builder, before you ask questions, before you sign anything, do this.

1. Open your contract and find the variation clause

Your contract has rules about how variations work. Read them. If the notice doesn't follow those rules, it's not valid.

2. Check what evidence the builder is required to provide

Most contracts require the builder to prove they've tried to minimize costs or delays. If they haven't provided that proof, ask for it.

3. Understand what you're actually obligated to pay for

Not every cost increase is your responsibility. Your contract will tell you which ones are and which ones aren't. For example, if the builder didn't properly assess the site before quoting, that's usually on them, not you.

The contract isn't there to make your life harder. It's there to protect you. But only if you actually use it.

Why most people never do this (and what changes when you do)

I get it. Contracts are dense, confusing, and full of legal language. And when you're in the middle of a build, the last thing you want is conflict with your builder.

But here's the thing: knowing your contract doesn't create conflict. It prevents it.

When you know what's in your contract, you can have calm, informed conversations with your builder. You're not being difficult, you're just following the process that both of you agreed to.

And when builders know you understand your contract, they're a lot less likely to try variations that don't hold up.

What happens when you get your contract right from the start

The best time to protect yourself from unfair variations isn't when you receive the notice. It's before you sign the contract.

A quality build comes from a quality contract. When your contract is clear about variation processes, cost escalation limits, and evidence requirements, you're not scrambling to figure out your rights in the middle of the build. You already know them.

That's exactly what we do in a Building Contract Health Check. We go through your contract before you sign and make sure you understand exactly where your protection is, what cost increases you're actually liable for, and how to prevent variations that shouldn't be your responsibility.

It's not about being difficult or mistrusting your builder. It's about going into your build with clarity and confidence, so when something does come up, you know exactly what to do.

Know exactly what you're signing before you build.

Get a Building Contract Health Check and protect yourself from the start: