Our Impact – Hanmer Clinic Tauranga (v6)

Hanmer Clinic Tauranga's Impact

Te Whare o nga Puna Waiora – The House of Healing Waters

Outcomes and Insights

The majority of the estimated measurable social value comes from three key outcomes.

$2.58m

50% of social value

Reduce Addiction

Achievement of abstinence and reduction in substance use, forming the foundation for sustained recovery.

$1.25m

24% of social value

Improve Mental Health

Measurable improvements in mental wellbeing, reducing psychological distress and building resilience.

$1.03m

20% of social value

Increase Employment

Supporting whai ora into employment, improving financial independence and recovery capital.

Additional outcomes linked to the programme Other outcomes linked with evidence to the programme include improvement in physical health and a reduction in emergency department visits, risky behaviour and family violence. Additional outcomes that contributed indirectly to the social value include a reduction in risk of relapse and psychological distress, increased self-efficacy, and improvements in coping behaviour, self-regulation, cognitive processes and motivation.

Where the Social Value Goes

Measured against the New Zealand Living Standards Framework.

Health

53%

Income

26%

Work

13%

Safety

72% of the social value is monetary (avoided government costs and income benefits). 28% is intrinsic value reflecting improvements in people's subjective wellbeing.

Hanmer Clinic Tauranga (HCT) supports individuals and their whānau across the Bay of Plenty who are affected by alcohol and other drug dependencies. Our work focuses on restoring wellbeing, strengthening relationships, and helping people build safer, healthier futures. The impact of this support reaches far beyond each individual – it strengthens whānau, relieves pressure on healthcare and social services, and contributes to the long-term health of the region.

Social Return on Investment Study 2025

In 2025, HCT partnered with ImpactLab to undertake an independent study to determine our Social Return on Investment (SROI) and to measure the social value created by our programmes for participating whai ora.

Social value is an estimate of the impact a programme achieves for the people it supports over their lifetime, measured in dollar terms.

About the Study

ImpactLab utilised academic evidence, government population data and HCT's programme data as part of their GoodMeasure analysis.

The study looked at data for 212 participants who were supported through the programme between 1 July 2024 and 30 June 2025.

Findings from the 2025 ImpactLab Study

Invested

→

$3.50

Social Value

The report shows that for every dollar invested in the programme, an estimated $3.50 is returned to New Zealand in terms of better lives, higher incomes and reduced government costs.

$5.15m

Total estimated
social value

$24,274

Social value
per person

212

Participants
engaged

Years serving
Tauranga

$28,191

Per person
AOD Outpatient

$16,936

Per person
Wakaunua Whaihauora

$4,795

Per person
Whānau members

149 AOD Outpatient, 53 Wakaunua Whaihauora, and 10 Whānau members meaningfully engaged during the study period.

AOD Outpatient: Participants with addiction who request an abstinence-based programme.
Wakaunua Whaihauora: Participants who are homeless or living in transitional/emergency housing.
Whānau members: Whānau of those with addiction.

Who We Serve

Between 1 July 2024 and 30 June 2025, Hanmer Clinic supported 479 first‑time entrants across three programme streams. Of these, 44% participated enough to meet the threshold for meaningful engagement. In the context of addiction recovery where ambivalence, relapse and disengagement are common, this level of engagement is a meaningful indicator of programme reach and impact. This figure excludes people already enrolled with the service or engaged in long‑term support.

AOD Outpatient Service

An intensive programme utilising individual and group counselling alongside peer support, delivered in four phases from triage through to continuing care.

399 started 149 engaged

Wakaunua Whaihauora

Community-based individual and group support for those in transitional or emergency housing, focusing on beginning recovery without requiring abstinence.

62 started 53 engaged

Whānau/Family Support

Support offered to families and whānau impacted by a family member's addiction, through counselling, group sessions and information provision.

18 started 10 engaged

Ethnicity of engaging participants:

50%

Pākehā

40%

Māori

Other

Asian

Pasifika

100% of participants experienced poor mental health at programme start. 100% of AOD Outpatient and Wakaunua whai ora had a history of addiction or substance use disorder.

Evidence of Effectiveness

Hanmer Clinic's own data shows improvements in the proportion of participants achieving abstinence during and at exit from the programme. This measure excludes outcomes achieved by clients who reduced their alcohol and/or drug consumption or who ceased their primary substance of use.

62%

achieved abstinence during the programme or at exit

AOD Outpatient Whai Ora

24%

achieved abstinence during the programme or at exit

Wakaunua Whai Ora

The AOD outpatient service requires abstinence in later programme stages, while Wakaunua Whaihauora does not require abstinence to participate. Wakaunua whai ora also face housing insecurity, which can pose additional barriers. Positive health outcomes are also associated with reductions of harmful use, so abstinence should not be seen as the only indicator of progress.

Key Insights

Longer-term treatment supports recovery outcomes

Longer-term AOD treatment that supports individuals beyond a year can be important for the accrual of recovery-related outcomes. Evidence shows that within the first year of recovery, some wellbeing measures may initially dip before improving significantly between years one and five.

Outpatient treatment has lasting employment impact

Intensive support for substance use disorders delivered in outpatient settings can have positive long-term impacts on employment. Research has associated community outpatient treatment with a 10% increase in full-time employment five years after treatment.

Among the top 1% nationally for impact measurement

Completing the GoodMeasure process places Hanmer Clinic Tauranga among the 1% of charities in Aotearoa New Zealand who have actively sought to understand their impact through this internationally recognised methodology.

Read the Full Report

Download the complete 2025 GoodMeasure Report for Hanmer Clinic Tauranga, prepared independently by ImpactLab.

Download Full Report (PDF)

This study was conducted by ImpactLab using the GoodMeasure methodology. Social value is estimated using academic evidence, government population data and programme data. The study period covers 1 July 2024 to 30 June 2025. The SROI is calculated from the total social value divided by total operation costs and rounded to the nearest 10c.