ProppiAI Research
Original research on residential tenancy, compliance, and document patterns across New Zealand and Australia. Every report publishes its sources, sample size, date range, and methodology alongside the findings — no fabricated statistics, no unattributed claims.
See our editorial standards for the sourcing, fact-check, and publication gate that every research report passes through before it ships.
Published reports
Australia
Australia Rental Tax Statistics 2022-23
Analysis of Australian Taxation Office rental property statistics for 2022-23, covering negative gearing, interest costs, investor concentration by state, taxable income bands, and multi-property investor patterns.
Australia
Australian Landlord Compliance Gap Report 2026
State-by-state analysis of residential rental compliance requirements across New South Wales, Victoria, and Queensland — smoke alarms, electrical safety, gas checks, condition reports, and minimum standards — with the gaps landlords most frequently miss.
New Zealand & Australia
New Zealand and Australia Rental Document Landscape 2026
A cross-market analysis of residential tenancy document requirements, compliance rates, and bond dispute patterns in New Zealand and Australia, sourced from government statistics and tribunal data.
New Zealand & Australia
Tenancy Agreement Anatomy 2026: New Zealand and Australia
What a residential tenancy agreement must contain in New Zealand and Australia, how the two frameworks differ, which clauses are most commonly disputed at tribunals, and the 2024–2025 legislative changes landlords need to know.
Methodology standards
Every ProppiAI research report discloses the following before any findings appear on the page:
- Sample size per region. New Zealand and Australian samples are reported separately. If one region's sample is too small for reliable inference, we say so and do not aggregate it into the other.
- Date range. The ingestion window used for every figure, in ISO dates.
- Data provenance. Every statistic is labelled as ProppiAI-origin ("Based on analysis of N documents ingested via ProppiAI between X and Y") and never presented as a market-wide figure.
- Limitations. Known selection biases, missing jurisdictions, and caveats are disclosed in the body of the report, not buried in a footnote.
- Fact-check gate. Every headline statistic is independently re-derived from the source data before publication. Any figure that can't be reproduced is removed, not softened.
Upcoming research
The first reports are in progress. Each one is gated on a sample size large enough to report per-region figures without misrepresentation, so publication dates move when the data moves. We never ship a report with a placeholder number.
New Zealand & Australia
New Zealand & Australia Rental Document Landscape 2026
Original research on the structure of residential tenancy agreements and related documents across New Zealand and Australia, aggregated from anonymised ProppiAI ingestion data. Publication is gated on a sample size large enough to report per-region figures without misrepresentation.
In progressAustralia
Australian Landlord Compliance Gap Report 2026
Cross-reference of ingested Australian tenancy documents against state-level requirements in New South Wales, Victoria, and Queensland. Figures will be reported per-state wherever the sample supports it — no aggregation into a fake Australia-wide number.
In progressNew Zealand & Australia
Tenancy Agreement Anatomy 2026: New Zealand & Australia
Structural analysis of residential tenancy agreement clauses across both markets, with separate sample-size disclosures per region. Identifies the clauses landlords most frequently omit and the clauses most frequently disputed at the Tenancy Tribunal (New Zealand) or state tribunals (Australia).
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Reports are published on this page as they ship. There is no mailing list yet — follow the blog for publication announcements and methodology posts.