Impact assessments (social, health and sustainability):
We are experts in assessing the future potential effects of planned interventions via social impact assessment (SIA), health impact assessment (HIA) or sustainability assessment. We recommend ways to stop negative outcomes and promote positive outcomes. Our assessments have informed projects, programmes, policies and strategies in New Zealand and throughout the world. We work within Environmental Assessments to provide an understanding of potential social or health effects. We have undertaken over 60 assessments including assessment of social effects, health effects and effects on multiple domains (integrated and/or sustainability assessment).

Examples of impact assessments



Impact assessment

Literature review

Community and engagement

Service, programme and policy design

Consulting services to achieve your goals

Quigley and Watts Ltd

Level 1, 93 Cuba Street, Wellington, 6011
PO Box 24266, Wellington 6142, New Zealand.
Phone 021 828 055 (Carolyn) or 021 911 190 (Rob)
Email –

Peer reviewed over 20 NZ Transport Agency social assessments, wrote the draft SIA guide for the NZ Transport Agency, and is undertaking a social assessment on a complex transport route for the NZ Transport Agency.

Social assessment of transport projects

Assessed the social effects of the largest prison expansion in Australasia. This SIA informed the Notice of Requirement for the Department of Corrections. This work required an alternatives assessment, substantial community engagement and giving evidence in the Environment Court.

SIA of the Waikeria Prison expansion

We have run over 30 health impact assessment (HIA) and five Health in All Policies (HiAP) courses (including two WHO- sponsored courses for international participants). The courses give participants the necessary skills and knowledge to change how they work.

Training in HIA and Health in All Policies

Still finding your way?

Download! Integrated assessment: A guide.

Integrated assessment: A guide shows a way to assess multiple domains, engage communities and provide clear advice to draft proposal authors and decision makers. By Ward, Quigley, Banwell and Timms (2019).

Download: Integrated Assessment Guide.pdf