Building a house in Queensland generally moves through five construction stages: base, frame, enclosed, fixing and practical completion. Each stage ends with a clear milestone on site, most of which line up with a mandatory inspection by your building certifier, and most contracts tie a progress payment to each one. For a custom home, there’s also a full design and documentation phase before any of that begins. 

Most guides start the day the slab goes down. We’ve started where a custom home actually starts, and for each stage we’ve covered what happens, what gets checked, and where your input matters most.

The Stages That Happen Before Construction

A project home’s design already exists, but a custom home has to be designed, engineered and documented before a builder can give you a fixed price. At PEDRIVA, that work happens across four steps.           

Initial conversation

We talk through how your family lives, what you want from your block, your budget, and work through an early layout together.

Concept development

A concept plan with an initial certifier review, soil testing, a contour survey and a high-level budget estimate.

Detailed design and proposal

Engineering, electrical plans, joinery drawings, window and door schedules, colour selections, full construction documentation and a final quote.

Contract and deposit

Once you agree on the scope and price, everything is formalised in a building contract. 

Building approval also happens in this phase, along with any council approvals your design or site overlays require. This front-end work is the part most people underestimate, and it’s where most of the decisions that affect cost and program are made. We’ve covered the time involved in How Long Does It Take to Build a Custom Home?

The Five Construction Stages

Queensland building contracts commonly use these stage names, though your contract will define exactly what each stage includes and when you pay.

Stage 1: Site Works and Base

What happens: The site is set out and prepared, which can include clearing, excavation, retaining, stormwater drainage and under-slab plumbing. Then the footings and slab go in. On a flat block, that’s usually a concrete slab on ground. On a sloping block, it might be piers, a suspended slab or a combination.

What gets checked: Under Queensland’s Building Regulation, the certifier must inspect after excavation and before any footing or slab concrete is poured, and again once the formwork and reinforcement are in place but before the slab pour.

Where you come in: There’s not much for you to decide here, but it’s where site conditions reveal themselves. Many Brisbane suburbs sit on reactive clay, and the soil classification affects the footing design. When you do soil testing and a contour survey at concept stage, the ground holds far fewer surprises.

Stage 2: Frame

What happens: Wall frames, floor framing and roof trusses go up. Plumbers and electricians then complete the rough-in, running pipes and cabling through the frame before it’s closed in.

What gets checked: Frame inspection is mandatory, and the certifier checks the structure, bracing and tie-downs against the approved plans and engineering.

Where you come in: Standing inside the frame, you’ll get to see room proportions, ceiling heights and window outlooks for the first time. It’s also your last easy chance to confirm power point, switch and data positions, and to make sure blocking is in place for wall-hung vanities and floating joinery. Once plasterboard goes on, small changes can be expensive.

Stage 3: Enclosed

What happens: Roofing, external cladding, windows and external doors are installed, and the home becomes weathertight. You’ll often hear this called lock-up or the enclosed stage.

What gets checked: It isn’t a mandatory certifier stage, so the builder’s own quality checks matter here, particularly flashings, window installation and anything that keeps water out.

Where you come in: Large windows and custom doors can carry long lead times. In a design and construct process, specify those items so they’re ordered in time rather than holding up the program.

Stage 4: Fixing

What happens: Plasterboard, cornices, internal doors, skirting and architraves, wet-area waterproofing, tiling, cabinetry, stone and painting, followed by the fit-off of lights, tapware and appliances.

What gets checked: Plumbing and drainage have their own inspections, and waterproofing must meet the relevant standards before tiling goes over it.

Where you come in: This is where your selections become real, and in a custom home it’s usually where the most detailed work happens. Changing a selection at this point generally means a variation, with the cost and time that comes with it. 

Stage 5: Practical Completion and Handover

What happens: Final finishes, cleaning and any external works in the contract are completed, and the certifier carries out the final inspection.

What gets checked: In Queensland, practical completion means the work is finished in line with the contract and plans, either with no defects or only minor ones that won’t unreasonably affect your use of the home.

Where you come in: We’ll walk through your completed home together. Take your time, and once you’re happy, the final payment is made and the keys are yours. Statutory warranties then apply, covering structural defects for six years and non-structural defects for one year, alongside the Queensland Home Warranty Scheme.

How Progress Payments Follow the Stages

In Queensland, progress payments must reflect the work actually completed, and you claim each payment as the relevant stage is reached.

The QBCC is clear that you should never pay more than the contract states, or pay before a payment is due, as it can reduce your protection under the Home Warranty Scheme. If you’re using a construction loan, your lender will usually release funds against the same stages, often after its own valuer has visited the site.

We’ll talk through all of this with you in more detail before you sign anything. 

How the Stages Change on a Sloping Block or Knockdown Rebuild

On a sloping block, the base stage does much more of the heavy lifting. Excavation, retaining, drainage and footing design all have to be resolved before the frame can start, and the way the house meets the ground shapes everything above it. The best outcomes happen when that’s worked out in design. 

A knockdown rebuild adds steps before the base stage, including service disconnections, demolition and site clearing. You’ll also need somewhere to live for the entire build, so it’s worth thinking about those early steps at the outset.

Why Design and Construct Makes Each Stage Easier

Most of the problems homeowners run into during construction trace back to decisions made late: a design that wasn’t checked against the site, selections left until fixing, or a price set before the documentation was finished.

As a design and construct builder, we resolve those questions before construction starts. The team that designs your home is the team that builds it, and Pedram stays involved from the first conversation through to handover, so you always know which stage you’re in and what comes next. You can see how that works on our process page.

Questions to Ask Your Builder About the Stages

• How does the contract define each stage, and what payment is attached to it?
• Which certifier inspections apply to my build, and can I see the inspection documents?
• Which items need to be selected early?
• How will you keep me updated as each stage is completed?
• What does the handover process look like, and how are minor defects recorded?

Let’s Talk About Your Future Home

Knowing what’s coming during your build means you can make the right decisions at the right time.

If you’re planning a custom home, knockdown rebuild or major renovation in Brisbane, we’re happy to walk you through what each stage would look like for your block and your family. Get in touch to start the conversation.

Frequently asked questions

What are the stages of building a house in Queensland?

The construction stages are generally base, frame, enclosed, fixing and practical completion. For a custom home, these follow a design phase covering concept design, detailed design, documentation, approvals and contract signing.

Is lock-up the same as the enclosed stage?

Yes. Both describe the point where the roof, external cladding, windows and external doors are installed. Queensland building contracts usually use the term enclosed.

What inspections are mandatory when building a house in Queensland?

For a new detached house, the certifier must inspect the foundation and excavation stage, the slab before it’s poured, the frame, and the completed home at the final stage. Plumbing and drainage work has separate inspections.

When do I pay my builder during construction?

You pay a deposit when the contract is signed, then progress payments as each stage in the contract is reached. In Queensland, payments must reflect the work completed, and you should never pay ahead of the contract schedule.

Is practical completion the same as handover?

They’re closely linked. Practical completion is the point where the work is finished in line with the contract, with only minor defects at most, and handover follows once the final payment is made and you receive the keys.