Before you invest — the honest risk picture

Nationally, SDA moved from undersupply to oversupply around mid-2024, with thousands of additional rooms under construction since. Aggregate demand statistics still look attractive; the relevant question is region-by-region, category-by-category — and in many combinations the answer is already saturated.

Sector surveys have reported ~25% vacancy across new-build SDA, far above the 5% many models assume — with the highest rates in Fully Accessible and Robust stock. The NDIA's own price review lifted its vacancy assumptions materially. Stress-test your feasibility at 15-25% vacancy before believing any headline yield.

"SDA-eligible but not housed" counts overstate your realistic tenant pool: a large share of allocated SDA funding goes unused (sector estimates put fund utilisation around 40-55%). Participants may prefer to stay put, lack support coordination, or want a different configuration or suburb than yours.

Your tenancy pipeline, claims, and compliance all run through SDA and SIL providers. Provider financial distress is widespread (sector surveys report roughly half of disability providers operating at a deficit). Vet providers like you would vet a major tenant: registration status, compliance history, financials, and how many dwellings they already struggle to fill.

Revenue ceilings are set by government determination and re-set over time: CPI indexation is only committed through 2027, a new pricing-determination framework is before parliament, and scheme reforms (e.g. Thriving Kids, navigator model) keep shifting participant flows. A 20-year investment underwritten on today's price schedule carries genuine regulatory duration risk.

SDA is a thin, specialised asset class. Your buyer pool is other SDA investors, and your valuation depends on tenancy status and provider agreements — an empty enrolled dwelling in an oversupplied region can be worth less than its conventional equivalent.