Building a new home is a major investment, and most people focus on the exciting parts. Choosing finishes, watching the walls go up and imagining the finished kitchen somehow gets more attention than checking whether the work underneath is actually being completed properly. That is where a construction stage inspection becomes useful. 

A construction stage inspection is an independent inspection carried out at key points during the building process. Instead of waiting until the house is finished to look for problems, you have the work checked while construction is still underway. This gives you an opportunity to identify defects or non-compliant work before the next stage covers it or you release the related progress payment. 

At CBR Property Inspections, construction stage inspections align with HIA and MBA residential building payment milestones used across the ACT and NSW. 

This matters because some construction problems become difficult to access once later work has been completed. 

For example, if an issue exists in a part of the building that will soon be covered by lining, finishes or other materials, finding it later can make rectification more complicated. An inspection at the right stage gives you a better opportunity to raise the issue while the relevant work remains accessible. 

At CBR Property Inspections, inspections are completed in person by a licensed builder with more than 15 years of residential construction experience. 

Why Are Construction Stage Inspections Important? 

A construction project involves multiple trades, materials and payment stages. That means you are not simply checking one finished product. You are monitoring a process. 

A construction stage inspection helps you assess that process as the home takes shape. 

The main benefit is timing. Problems identified early can often be addressed before they become hidden by later construction. 

The inspections can also help you understand whether work completed at a particular stage appears consistent with what should be expected before the next payment milestone. 

This does not replace your builder, contract or other professional responsibilities. Instead, it gives you an independent set of eyes on the work. 

That independence matters because the person inspecting the work is not the person being paid to build it. 

When Should a Construction Stage Inspection Take Place? 

There are several points during construction where an inspection can be worthwhile. CBR Property Inspections recommends seven key stages that generally align with HIA and MBA progress payment milestones. 

These stages are: 

Construction Stage	Why It Matters
Slab	Provides an opportunity to assess work at the slab stage
Frame and Truss	Allows the structural frame and roof truss work to be checked
Lock Up	Checks the property once the building reaches the lock-up stage
Pre Sheet and Linings	Reviews work before internal areas are covered
Waterproofing	Checks waterproofing at a critical stage
Practical Completion	Identifies defects and incomplete work before final payment
90 Day Defects Liability	Provides a further inspection after handover

Not every project necessarily needs every possible inspection, but checking key stages helps reduce the chance of discovering problems only after construction has moved on. 

What Happens During a Construction Stage Inspection? 

The exact checks depend on the stage of construction. 

An inspector assesses the work that is visible and accessible at that point and looks for defects or work that may not meet the expected standard. 

The inspection is not simply a quick walk around the property. It is intended to evaluate the construction at a meaningful point in the process. 

CBR Property Inspections aligns its inspections with HIA and MBA payment stages so defects and non-compliant work can be identified before the corresponding progress payment is released and before later construction covers the area. 

The findings can then give you a clearer basis for discussing issues with your builder. 

What Are the Main Construction Stages to Inspect? 

Slab Inspection 

At slab stage, the inspection focuses on the foundation work before the frame goes up, including reinforcement, slab level and finish, and any visible signs of movement or cracking. 

This is one of the earliest points where a defect can be identified and raised with the builder before it's built over. 

Frame and Truss Inspection 

The frame and truss stage provides an opportunity to inspect important structural elements before later stages cover them. 

The four-stage package covers Frame and Truss, Lock Up, Waterproofing and Practical Completion. The full seven-stage package adds Slab, Pre Sheet and Linings, and the 90 Day Defects Liability inspection. 

Lock Up Inspection 

At lock up, the building has progressed considerably from the earlier structural stages. 

An inspection at this point provides another opportunity to identify construction issues before the project moves into subsequent internal work. 

Pre Sheet and Linings Inspection 

This is a particularly useful stage because later installation of sheets and linings can make parts of the construction less visible. 

Checking the work before those materials are installed gives you a better opportunity to identify issues while relevant areas remain accessible. 

Waterproofing Inspection 

Waterproofing deserves careful attention because failures can lead to water-related problems that become expensive to repair after finishes are installed. 

An inspection at the waterproofing stage provides an opportunity to identify concerns before the work becomes concealed by later construction. 

Practical Completion Inspection 

Practical completion is the stage where the builder considers the project substantially complete and the final payment becomes due. 

This is also when defects and incomplete work need to be identified before the project is signed off. 

CBR Property Inspections offers a dedicated practical completion inspection for new homes and extensions. The inspection focuses on workmanship, finishes, defects and incomplete work before final payment. 

90 Day Defects Liability Inspection 

The 90 day defects liability inspection provides another opportunity to identify issues after the home has been handed over. 

It forms part of the seven recommended construction inspection stages offered by CBR Property Inspections. 

How Much Does a Construction Stage Inspection Cost? 

The cost depends on whether you book individual inspections or a package. 

CBR Property Inspections currently lists individual construction stage inspections from $495 including GST. 

The current package pricing is: 

Inspection Option	Current Listed Price
Individual stage inspection	From $495
Practical Completion or 90 Day Defect inspection, once off	$575
Four-stage package	$1,700
Full seven-stage package	$3,000

The four-stage package includes Frame and Truss, Lock Up, Waterproofing and Practical Completion. 

The full seven-stage package covers the recommended inspection stages from slab through to the 90 day defects liability inspection. 

All listed prices include GST, and a firm quote is provided before booking. 

Is It Better to Inspect Every Stage? 

Not necessarily. 

The right inspection schedule depends on the construction project and the stages that matter most for your circumstances. 

CBR Property Inspections states that not every stage requires an inspection, but recommends inspections at key stages that generally align with HIA and MBA payment milestones. 

For many homeowners, the practical question is not whether every possible inspection is required. It is which stages provide the most useful opportunities to check work before it becomes covered or before another payment is made. 

A package can make sense when you want broader coverage across the build, while individual inspections may suit a project where you only want specific stages assessed. 

Who Carries Out the Inspection? 

Construction stage inspections should be performed by someone who understands residential construction rather than simply identifying surface-level issues. 

At CBR Property Inspections, construction inspections are carried out in person by a licensed builder with more than 15 years of residential construction experience. 

That construction background is relevant because assessing work during a build requires an understanding of what should be happening at different stages. 

The aim is not just to point out that something looks unusual. It is to identify defects or concerns while there is still an opportunity to address them. 

What Is the Difference Between a Construction Stage Inspection and a Building Inspection? 

A construction stage inspection takes place during the build and focuses on the work completed at specific construction milestones. 

A building inspection generally assesses the condition of an existing property. 

For example, our building inspection service focuses on the structural condition of an existing property. 

The two services therefore serve different purposes. 

One helps you monitor a property while it is being constructed. The other helps you assess the condition of a property that already exists. 

Do You Still Need an Inspection at Practical Completion? 

A final inspection remains valuable even when you have already completed inspections during construction. 

The practical completion stage gives you an opportunity to identify defects, incomplete work and issues with workmanship or finishes before final payment. 

The advantage of checking earlier stages is that you are not relying entirely on the final inspection to uncover every problem. 

You can also consider our building and pest inspection for properties where a combined structural condition and timber pest assessment is required. That service is designed for completed properties rather than monitoring a house during construction. 

Construction Stage Inspection vs Final Inspection 

It is easy to think that a final inspection makes earlier inspections unnecessary. The problem is that construction does not work that way. 

Once walls are lined, finishes are installed and other construction is completed, access to some areas becomes limited. 

A final inspection remains important, but it cannot provide the same visibility as an inspection completed while earlier stages are still exposed. 

This is why staged inspections can provide greater oversight throughout a construction project. 

Instead of finding everything at the end, you have multiple opportunities to identify concerns during the build. 

Is a Construction Stage Inspection Worth It? 

For homeowners building a new property, the main value of construction stage inspections comes from catching problems at the right time. 

A defect that is visible today may be much harder to investigate once another stage of construction covers it. 

The inspections also give you independent information when discussing concerns with your builder. You are not relying solely on assumptions or waiting until the end of the project to find out whether something needs attention. 

For a major investment such as a new home, that additional oversight can be worthwhile. 

CBR Property Inspections provides individual inspections and packages covering recommended construction stages, from the slab through to the 90 day defects liability inspection. 

Final Thoughts 

A construction stage inspection gives you independent oversight while your home is being built. 

Rather than waiting until everything is finished and hoping that problems have not been buried behind walls, linings or finishes, you can check important stages as the work progresses. 

CBR Property Inspections offers construction stage inspections aligned with HIA and MBA payment milestones, including slab, frame and truss, lock up, pre sheet and linings, waterproofing, practical completion and the 90 day defects liability stage. 

For homeowners in Canberra and the surrounding region, the right inspection schedule can help you identify problems earlier, raise concerns with your builder at the appropriate stage and make better-informed decisions throughout the construction process. 

Frequently Asked Questions

What is a construction stage inspection? 

A construction stage inspection is an independent inspection carried out during key stages of a building project. It checks the work completed at that stage so defects or non-compliant work can be identified before later construction covers it. 

When should you get a construction stage inspection? 

Common inspection points include slab, frame and truss, lock up, pre sheet and linings, waterproofing, practical completion and the 90 day defects liability stage. 

How much does a construction stage inspection cost? 

CBR Property Inspections currently lists individual stage inspections from $495 including GST. A four-stage package is $1,700 and the full seven-stage package is $3,000. Practical Completion and 90 Day Defect inspections cost $575 when booked once off. 

Do I need to inspect every stage of construction? 

Not necessarily. CBR Property Inspections states that not all stages require an inspection, but recommends inspections at key stages that generally align with HIA and MBA payment milestones. 

Why inspect during construction instead of only at the end? 

Inspecting during construction gives you a chance to identify and address defects before later work covers them. It can be harder to investigate and correct problems after subsequent construction is completed. 

Who carries out construction stage inspections? 

CBR Property Inspections carries out its construction stage inspections in person through a licensed builder with more than 15 years of residential construction experience. 

What happens at a practical completion inspection? 

A practical completion inspection checks the finished home or extension for defects, incomplete work and workmanship issues before final payment.