I’ve lost count of how many buyers tell me they’re thinking about skipping the building inspection to save a bit of money. We’re talking about $500-800 in most cases. Then they spend the next decade dealing with structural issues that cost tens of thousands to fix.

It’s genuinely baffling, but it happens more often than you’d think, especially when markets heat up and buyers feel pressured to act quickly.

What Inspections Actually Cover

A standard pre-purchase building inspection isn’t just someone having a quick look around. It’s a methodical examination of the property’s structural integrity, major systems, and potential safety hazards.

Most inspections cover:

• Foundation and structural elements
• Roof condition and waterproofing
• Electrical systems and safety
• Plumbing infrastructure
• Pest damage or activity
• Moisture and drainage issues
• General building defects

The inspector produces a detailed report, usually within 24-48 hours, that categorizes issues by severity. Major defects might include structural cracks or asbestos. Minor defects could be things like worn weatherboards or aging fixtures.

According to Domain’s 2025 inspection data, roughly 70% of Sydney properties inspected show at least some defects requiring attention. Most aren’t deal-breakers, but they’re leverage points for negotiation.

The Financial Equation

Let’s do the math. A building inspection costs around $500-800 for a standard house, maybe $1,000-1,500 for larger or older properties. That’s your upfront cost.

What you’re buying is information. If the inspection reveals $30,000 worth of necessary repairs, you’ve got options. You can negotiate the price down, ask the seller to fix specific issues before settlement, or walk away if problems are too severe.

I’ve seen buyers save $50,000 off asking prices after inspections revealed major structural issues. I’ve also seen buyers avoid purchasing absolute money pits that looked great cosmetically but had foundational problems requiring $100,000+ in repairs.

That $600 inspection suddenly looks like the bargain of the century.

Technology’s Changing the Game

The inspection industry’s modernizing faster than most people realize. Many inspectors now use thermal imaging cameras to detect moisture problems behind walls, infrared scanners to spot electrical hotspots, and drones for roof inspections that would otherwise be difficult to access.

Some companies are experimenting with custom AI development to analyze inspection photos and compare them against databases of known building defects. The tech can flag potential issues an inspector might need to investigate further.

It’s not replacing human expertise—building inspectors need years of experience to interpret what they’re seeing. But technology’s making inspections more thorough and comprehensive than they were even five years ago.

Common Inspection Oversights

Here’s what catches people out: thinking a building inspection covers everything. It doesn’t.

Standard inspections typically won’t include:

• Swimming pool compliance (separate inspection needed)
• Asbestos testing (visual identification only)
• Soil contamination
• Internal drainage systems
• Air conditioning or heating efficiency
• Detailed electrical compliance

For older properties, especially those built before 1990, you might need specialized pest inspections or asbestos surveys on top of the standard building report. These add cost but they’re often necessary.

The other oversight is timing. Get your inspection done during the cooling-off period if you can, not before you’ve made an offer. Properties can be off-market in days during busy periods—you can’t inspect everything you’re considering.

What Sellers Don’t Want You to Know

Here’s an uncomfortable truth: some sellers get their own pre-listing inspections done, then only release them if results are favorable. If results aren’t great, that report mysteriously never sees the light of day.

You still need your own independent inspection. The seller’s inspector works for them, not you. Different inspectors notice different things. And a report from six months ago doesn’t reflect the property’s current condition.

I recently dealt with a sale where the vendor had a glowing inspection report from eight months prior. The buyer’s inspection revealed significant new water damage from recent storms. The seller genuinely didn’t know—but it would’ve cost the buyer $25,000 to remediate if they’d relied solely on the old report.

The Negotiation Leverage

The real value in building inspections isn’t just identifying problems—it’s creating negotiation opportunities.

When you’re bidding at auction, you can’t negotiate after the hammer falls. But for private treaty sales, a detailed inspection report gives you concrete reasons to adjust your offer. Sellers can’t easily dismiss findings from a qualified, independent inspector.

Be strategic about it. Not every minor defect justifies a price reduction. Focus on major issues or things that require immediate attention. A leaking roof or electrical safety hazards are legitimate negotiation points. Worn carpet or dated bathroom tiles aren’t.

I’ve found that presenting repair quotes from licensed contractors alongside the inspection report strengthens your position considerably. It’s harder for sellers to argue about costs when you’ve got written estimates.

The Bottom Line

Skipping the building inspection to save a few hundred dollars is like skipping insurance to save on premiums. You’re gambling that nothing will go wrong, and the potential downside is enormous.

Sydney’s median house price is around $1.2 million. Spending 0.05% of that purchase price on a thorough inspection is basic due diligence, not an optional extra.

The only properties where I’d consider skipping an inspection are vacant land purchases with plans to demolish any existing structures. For everything else, get it done. Your future self will thank you.

Linda Powers is a licensed real estate agent specializing in PropTech applications across Sydney’s residential market.