Learn · Worked example N°16 — Example He Oranga Poutama

Example SROI reports

A concise walk-through of how we build a defensible SROI: scope, evidence, monetisation choices, and results you can audit.

Forecast SROI in practice: He Oranga Poutama

SROI report

Full Social Impact Assessment (PDF). Methods, evidence, assumptions, and appendices.

SROI summary

Two-page SROI Summary (PDF). Headline numbers, drivers, and scope.

SROI audit

Twelve SROI Checks — HOP (PDF). The audit view of the model choices.

At-a-glance results

  • Benefit–cost ratio (base): 5.1 : 1
  • Present value of benefits: $1.13m (real 2025 NZD)
  • Present value of costs: $0.22m
  • NPV: $0.90m
  • Cohort: ~400 people
  • Sensitivity range: 0.6–8.6 : 1 (driven mainly by attribution)

What this example covers

He Oranga Poutama supports community-led participation in active recreation and sport across the Manawatū region. The example shows how we translate observed outcomes into a forecast SROI using Treasury’s CBAx approach, in real 2025 NZD with a 2% social discount rate.

What we measured (monetised)

Five material outcome domains were monetised with documented sources and base years:

  • Improved physical health (adults & youth)
  • Avoided moderate depression/anxiety
  • Social connectedness / group membership
  • Life satisfaction uplift
  • Regular volunteering

Unit values used in the model (per person-year): $1,742 (adult physical activity), $1,223 (youth physical activity), $20,000 (avoided depression/anxiety), $1,084 (social connectedness), and $745 (volunteering).

What we didn’t monetise

Cultural identity and belonging, community leadership, marae engagement, environmental connection (Māra Kai), and other taonga were reported qualitatively to avoid double-counting and preserve conservative claims. These sit outside the ratio but are material to decision-makers.

Method in brief

  • Counterfactual & deadweight: estimate what would have happened anyway before any other adjustments.
  • Attribution: allocate shares across contributors; never assume 100%.
  • Duration & drop-off: retain only the portion that persists each year (physical health to three years; social connection and volunteering into year two; some outcomes set to one year).
  • Discounting: convert to present value at 2%.

The approach follows the 12-check audit pathway for design → causality → valuation.

Results & drivers

The largest monetised contributions come from improved physical health and social connectedness, with additional value from avoided depression/anxiety, life satisfaction, and volunteering. Sensitivity testing shows the key lever is attribution; the base case remains positive under moderate settings.

“Awesome mahi. It helped HOP get an award with Sport NZ!”

John Samuela
Kaiarahi Kaupapa (Project Manager/Lead), He Oranga Poutama

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