The Australian SDA market is growing faster than supply can respond. As of March 2026, 751,446 Australians participate in the NDIS — up 8% year-on-year. Of the participants with SDA funding approved, the national unhoused rate remains structurally elevated: in NSW alone, 3,015 SDA-funded participants are actively seeking accommodation and cannot find a suitable registered dwelling.
Total SDA expenditure grew 23% in the most recent annual period, reaching $592 million nationally. SDA payments nearly doubled over the same period — from $242m to $481m — as more participants transition from home environments into registered SDA. This is not a speculative demand signal; it is measurable, growing, government-funded expenditure looking for supply to absorb it.
The core opportunity in 2026: Supply growth in the right suburbs is failing to keep pace with participant demand. Investors who identify and enter undersupplied suburbs before the developer pipeline catches up capture the strongest tenanting outcomes and most durable yields.
| State | SDA-Funded Participants | In Dwellings | Seeking SDA | Unhoused Rate | Market Signal |
|---|---|---|---|---|---|
| NSW | 8,027 | 5,012 | 3,015 | 37.6% | Very Strong |
| VIC | ~6,800 | ~4,400 | ~2,400 | ~35% | Strong |
| QLD | ~5,400 | ~3,700 | ~1,700 | ~31% | Mixed — suburb dependent |
| WA | ~3,200 | ~1,900 | ~1,300 | ~41% | Strong — early market |
| SA | ~2,100 | ~1,400 | ~700 | ~33% | Moderate |
VIC, QLD, WA, SA figures are modelled estimates based on national distribution ratios and state NDIS growth rates. NSW figure is sourced directly from NDIS Q1 2026 data.
Every suburb is scored out of 100 across four weighted dimensions. The Index is recalculated quarterly as NDIS participant data, provider registrations, and planning approvals are updated.
| Dimension | Weight | What We Measure |
|---|---|---|
| Demand | 35 pts | NDIS participant density, SDA-funded participant estimate, growth trajectory, design category demand profile |
| Supply Gap | 35 pts | Registered SDA dwellings by category, approved pipeline, demand-to-supply ratio, vacancy signals |
| Infrastructure | 20 pts | Active SIL providers within 10km, allied health density, hospital access, transport |
| Pipeline Risk | 10 pts | DA approvals, developer announcements, developer concentration risk |
| Score Band | Signal | Interpretation |
|---|---|---|
| 70–100 | Strong Opportunity | Demand-supply imbalance in investor's favour. Proceed with design-category guidance. |
| 50–69 | Selective | Opportunity exists in specific design categories only. Verify supply before committing. |
| 30–49 | Caution | Demand exists but supply is catching up. Monitor quarterly before committing. |
| 0–29 | Avoid | Oversupplied or insufficient participant base. High vacancy risk. |
| # | Suburb | State | Score | Best Design Category | Signal |
|---|---|---|---|---|---|
| 1 | Parramatta Penrith/Parramatta LGA |
NSW | 84 | IL FA | Very Strong |
| 2 | Frankston Frankston LGA |
VIC | 81 | FA HPS | Very Strong |
| 3 | Townsville Townsville City LGA |
QLD | 78 | HPS FA | Strong |
| 4 | Blacktown Blacktown LGA |
NSW | 77 | Robust IL | Strong |
| 5 | Craigieburn Hume LGA |
VIC | 73 | IL | Strong |
| 6 | Cairns Cairns Regional LGA |
QLD | 72 | FA IL | Strong |
| 7 | Penrith Penrith LGA |
NSW | 71 | Robust FA | Strong |
| 8 | Mandurah Mandurah LGA |
WA | 69 | HPS IL | Emerging |
| 9 | Campbelltown Campbelltown LGA |
NSW | 68 | Robust IL | Selective |
| 10 | Elizabeth Playford LGA |
SA | 64 | IL Robust | Selective |
Each profile summarises the demand drivers, supply status, infrastructure rating, and recommended design categories for the top 10 suburbs. For a full suburb report — including detailed supply audit, design category matrix, ROI modelling, and go/no-go verdict — order a Single Suburb Report.
Identifying where not to invest is as valuable as identifying where to invest. The following markets are showing clear SDA oversupply signals as at June 2026:
Developer oversupply has created a significant vacancy problem across the SEQ corridor south and west of Brisbane. Properties in Logan (Opportunity Score: 38), Ipswich (33), and Springfield (31) are reporting tenanting timelines of 9–18 months. The NDIS participant base in these areas cannot absorb the SDA stock that has been built and registered over the past three years. Do not enter these markets for new SDA development until vacancy rates normalise — monitor quarterly.
Any suburb — regardless of state — where SDA is being marketed based on affordability and growth projections rather than existing NDIS participant density and SIL provider presence should be treated with extreme caution. Greenfield markets typically require 3–5 years for support services infrastructure to mature. SDA built ahead of that infrastructure sits vacant.
General rule: If a developer or investment marketer cannot tell you the current number of NDIS participants with SDA funding in the target postcode, and the number of registered SDA dwellings already in that postcode — walk away. These are public figures and any credible SDA investment should be built on them.
The National Hotspot Report identifies where the opportunity is. The next step is to validate the specific opportunity in your chosen suburb — at the design category and site level — before committing capital.
| Step | Action | Purpose |
|---|---|---|
| 1 | Select your preferred suburb from the top 10 | Narrow focus to where demand-supply signals are strongest |
| 2 | Order a Single Suburb Report for your chosen location | Full supply audit, design category matrix, ROI modelling, go/no-go verdict with conditions |
| 3 | Engage 2 local SIL providers before NDIS registration | Confirm referral pathway exists — this is the single best predictor of tenanting speed |
| 4 | Verify no SDA pipeline of 5+ places in your design category within 2km of your site | Protect your supply position before construction begins |
| 5 | Register with NDIS as early as possible — registration takes 3–6 months | Begin the tenanting clock as soon as possible after construction completion |
A Single Suburb Report gives you the full picture — detailed supply audit, design category matrix, ROI modelling, and a plain-English go/no-go verdict with conditions. Delivered in 48 hours.
Order a Suburb Report — $770