Once someone's happy with roughly what a new home costs, the next question is always the same: how long until we can move in. It's a fair thing to want a date for. You might be timing the end of a lease, a house sale, or a school year. The trouble is that a build isn't one clock, it's a chain of them, and the part people underestimate is everything that happens before a hammer swings.
We build across Wollongong and the Illawarra, and we'd rather give you a real timeline with the soft bits included than a build-only number that sounds fast and then slips. Here's how the months actually stack up.
The honest total
Design and approval, then the build. For a standard new home, plan on the design and approval stage taking a few months, and the build itself running from around six months for a simple single-storey home to a year or more for a larger two-storey job. Add it up and a new home from first sketch to handover is usually the better part of a year, sometimes more. Anyone promising a slab in a fortnight is skipping steps you'll pay for later.
Before a hammer swings
This is the stage that surprises people, because there's nothing to photograph and it eats real time.
Design comes first: working out what fits your block, your family and your budget, then drawing it properly. Rushing this is a false economy, because changes are cheap on paper and expensive in brick.
Then approval, and which path you're on matters a lot to the clock:
- Complying development (CDC) is the faster route, signed off by a private certifier, if your block and design tick every box in the state code. Weeks, not months, when it goes smoothly.
- A development application (DA) through council is slower, because it's assessed by people with a queue, and sometimes neighbours who get a say. Months is normal, longer on a tricky site or where there are objections.
Which one applies depends on your land and design, so confirm it early with your council or a private certifier. It's the single biggest lever on your start date. If you want to check a builder or certifier is properly licensed, the NSW Building Commission is the regulator behind the licensing and standards side.
The build, stage by stage
Once you're on site, a new home runs through fairly predictable stages, and each one is a decent chunk of the total:
- Site and slab. Clearing, earthworks, footings and the slab. On a sloping or rocky Illawarra block this stage alone can stretch, because there's more to do before anything's level.
- Frame. The skeleton goes up and suddenly it looks like a house. This stage moves quickly when the weather holds.
- Lock-up. Roof, windows and external walls, so the place is watertight. Once you're at lock-up, rain stops mattering as much and the pace steadies.
- Fit-out. The slow, detailed part. Plastering, cabinetry, tiling, painting, all the trades working through the inside. Most of the "why isn't it finished yet" feeling lives here, because there's a lot of work that doesn't change how the house looks from the street.
- Handover. Final fixings, the clean, the inspections and the keys.
How long does each stage take?
On a straightforward single-storey home, plan on roughly three to five weeks from site start to a cured slab, two to three weeks for the frame, four to six weeks to reach lock-up, eight to twelve weeks through fixing, and another two to four weeks from there to handover. That's the shape of a five to seven month build, and a larger or two-storey job stretches most of those stages rather than adding new ones.
Fixing is the long one, and it's the stage people ring about. Plastering, cabinetry, tiling, painting, doors, skirting and the second fix for every trade all happen inside the same watertight box, mostly in sequence rather than at the same time, so it takes months while the outside of the house looks finished from the street.
From the end of fixing to practical completion is usually a few weeks: final plumbing and electrical fit-off, floor coverings, the builder's clean, touch-ups off the defect walk, and the inspections that sign the place off. It's a short stage that slips easily, because it depends on a lot of trades making short return visits.
After the slab is poured, then, a simple single-storey home is generally somewhere between four and six months from concrete to keys, weather permitting.
What blows a timeline out
The build itself is usually the predictable part. What moves it is often outside the slab:
- Weather. Wet trades like concrete, brickwork and render don't like rain, and the Illawarra gets its share. A wet winter can quietly add weeks.
- Variations mid-build. Changing your mind after a stage is built means undoing and redoing. Decisions made late are the most common cause of a job running over, more so than materials or trades in our experience.
- Selections left open. If tiles, tapware and joinery aren't chosen and ordered in time, the trades that need them stall. Some finishes have long lead times.
- Materials and trades. Supply has settled a lot since the boom years, but a specialty item on a long order can still hold up a stage.
How to keep it moving
The jobs that run to time are the ones where the owner makes decisions early and sticks to them. Lock your finishes before the build starts, not during it. Keep one builder responsible for the whole run so there's no gap between trades where nobody's driving. And build a little slack into whatever you're planning around, because a build that finishes a fortnight late is normal, and a lease that ends on a fixed day isn't forgiving.
If you're still weighing the spend as well as the schedule, our guide on what it costs to build a house in NSW covers the money side, and if you're looking at a smaller build first, how long a granny flat takes runs a good deal shorter than a full home. Rebuilds have an extra step out front, covered in knockdown rebuild cost in the Illawarra.
Before you sign, it's worth reading the NSW Fair Trading building and renovating guidance on contracts and progress payments, so the schedule you agree to is one you can hold a builder to.
Get a timeline for your block
A real timeline comes from a real plan: your block, your design and the approval path it's likely to take. See how we run new homes end to end, then call us on 0434 037 851 or reach us through the contact page and we'll talk through a realistic schedule for your place.
Want a hand with this at your place? Get a free quote or call 0434 037 851.