One of the most common questions I get is "how long will this take?" The honest answer is: longer than you think, but shorter than you fear, if you know what to expect and plan accordingly.
The problem is that most people base their expectations on council websites, which quote statutory assessment periods that bear almost no resemblance to reality. A council might say "20 business days" for a DA assessment. In practice, the clock stops every time they request additional information, and most DAs get at least one information request. The actual elapsed time from lodgement to decision is typically 4 to 12 months depending on the council and the complexity.
A realistic total timeline for a subdivision project in Australia is 18 to 36 months from identifying a site to receiving your money. A simple 1-into-2 on the faster end. A larger multi-lot project on the longer end. This guide breaks down where that time goes so you can plan your feasibility and your holding costs properly.
"Every month your project takes is a month of holding costs. If you budget for 18 months and it takes 30, that's 12 months of unexpected interest, rates, and insurance coming straight off your profit. Always plan conservatively."
The 6 stages and how long each takes
Every subdivision project, regardless of state or size, follows the same basic sequence. The duration of each stage varies, but the order doesn't.
A few important notes on this table.
Stage 2 has the widest range because your settlement period is a negotiation. If you negotiate a long settlement (6, 9, 12, or 18 months), this stage stretches, but that's deliberate. A long settlement lets you overlap stages 2, 3, and 4. You lodge the DA while the property is still under contract, which means you're not paying holding costs during the longest and most uncertain stage of the project.
Stage 4 is the one you control the least. Everything else is reasonably predictable. Council assessment is where projects stall, because the timeline depends on the council's workload, the complexity of your application, whether they request additional information, and whether the application triggers referrals to other agencies or public notification.
Stages 3 and 4 can run inside Stage 2 if you've negotiated a long settlement. This is the single most important timeline strategy in subdivision. Instead of settling and then starting the DA process (paying holding costs from day one), you get the DA lodged and potentially approved before you've even settled on the property.
On a 3-month settlement, you settle and then start the DA process. You're paying holding costs from day one while council takes 6 to 12 months. On a 12-month settlement, you lodge the DA during the contract period. By the time you settle, you may already have DA approval in hand. Same project, same site, but fundamentally different holding costs and risk. Always negotiate for time.
How project size affects timelines
Not all subdivisions are created equal. The size and complexity of the project has a significant impact on every stage of the timeline.
Simple 1-into-2 subdivision
This is the bread-and-butter project for first-time developers. You're splitting one residential lot into two. The DA is relatively straightforward, the civil works are typically limited to a new driveway crossover, service connections, and possibly some stormwater drainage. These projects sit at the faster end of the range, typically 18 to 24 months from site identification to settlement of the finished lots.
Small multi-lot (3 to 6 lots)
Once you move beyond a 1-into-2, the complexity increases. You're likely dealing with a new internal road, more extensive civil works, possibly a stormwater detention system, and a more complex DA with additional reports (traffic, stormwater management, landscaping). Council assessment typically takes longer because the application is more complex. Expect 24 to 30 months.
Larger projects (7+ lots)
Larger subdivisions involve significant infrastructure: new roads, roundabouts, detention basins, pump stations, parkland dedications. The DA process is more involved, often requiring public notification and potentially going to a council planning committee for decision. Civil works take longer and are more weather-dependent. These projects sit at the 30 to 36 month end of the range, and can stretch beyond that on very large or complex sites.
Want help planning your project timeline?
The Master Land Subdivision online course includes a project timeline framework and milestone tracker so you know exactly what to expect at each stage.
Get the Online Course →What causes delays
Most delays come from a small number of predictable sources. Knowing what they are means you can plan for them rather than being surprised.
Incomplete DA lodgement
If your DA is missing information or supporting reports, council will issue an information request. This stops the assessment clock until you respond. A poorly prepared DA can add 2 to 4 months to the assessment period. This is why your town planner is your most important consultant. A good planner lodges complete applications that don't get sent back.
Referral agencies
Some applications get referred to external agencies: state government departments, water authorities, transport agencies. Each referral adds its own assessment period on top of the council's. Referrals are common when sites have overlays, adjoin state-controlled roads, or involve significant infrastructure.
Public notification and objections
Applications that don't fully comply with the planning scheme often require public notification. Neighbours can lodge submissions. If there are objections, the assessment officer needs to consider them, and the application may go to a council planning committee for decision. This can add 2 to 6 months.
Council resourcing
Some councils are simply under-resourced. They have more applications than staff to assess them. There's not much you can do about this except factor it into your timeline from the start. Your planner will know which councils are fast and which ones have backlogs.
Civil works weather delays
Earthworks and civil construction are weather-dependent. A wet season can push a 2-month programme out to 4 months. If your civil works are scheduled during the wet season, add a buffer to your timeline.
How to move faster
You can't control council assessment times. But you can control everything either side of them, and you can avoid the delays that are within your control.
- Lodge a complete DA. The single biggest time saver. A complete application doesn't get sent back for additional information. Your planner should know exactly what the council expects.
- Negotiate a long settlement. Overlap the DA assessment with the contract period. Aim for 6 to 18 months. Settle after approval, not before.
- Line up consultants in advance. Don't wait until the DA is approved to find a civil engineer. Brief them during the assessment period so they can start work the week approval comes through.
- Think parallel, not sequential. While council is assessing the DA, you can be getting civil engineering quotes, briefing a selling agent, preparing marketing materials, and lining up finance. The fastest projects are the ones where the developer had everything ready before they needed it.
- Follow up regularly. A polite fortnightly check-in with the council assessment officer keeps your application front of mind. Don't be a pest, but don't be invisible either.
"The fastest projects I've seen are the ones where the developer had everything prepared before they needed it. Surveyor booked before the DA was approved. Civil engineer briefed during assessment. Selling agent engaged while civil works were underway. Parallel, not sequential. That mindset alone can save you 3 to 6 months."
What comes next
Understanding realistic timelines helps you build accurate feasibility calculations and set proper expectations. Every month of holding costs needs to be in your numbers from the start.
If you're still evaluating sites, start with What Makes a Good Subdivision Site? to screen opportunities quickly.
If you want to understand the consultants you'll be engaging at each stage, read What Does a Town Planner Actually Do?
And if you want a complete project framework with timelines, milestone trackers, and consultant engagement guides, the Master Land Subdivision online course covers the full process from site search to settlement.
