Our Executive

Our Executive team brings a rich blend of skills and experience to Unison. They all have a shared passion for our vision and strong alignment with our values. 

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James King


James is highly experienced in the areas of construction management and property development.  Showcasing his strong leadership skills, he moved into the role of CEO at Unison Housing, and led project teams from inception to delivery of key Unison developments including the recent UDIA Award-winning project in Footscray.

James started his career in New Zealand delivering Government Housing and more recently in Melbourne working in consultancy as a client-side Project Manager / Superintendent. He has extensive experience in both new builds and residential developments and is transforming Unison into the most sought-after purveyor of social and affordable housing in Melbourne.

James is also a non-executive director on the Board of Community Housing Industry Association, Victoria.

James has a Bachelor of Business Studies (BSS) and a Diploma in Construction Management; and is also a Registered Builder in both Victoria and New Zealand.

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Sue Grigg

Director Housing and Homelessness

Sue Grigg has been working in housing and homelessness for over twenty years and has extensive experience working in the not for profit sector, for government and in research and consulting roles.

Sue has postgraduate qualifications in Social Planning and also brings to the Director’s role a passion for learning and practice development.


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Celine Savage

Director Corporate Services

Celine heads the Risk and Compliance, Information Technology, Marketing and Communications, and People portfolios. She is also the Company Secretary for Unison Housing Ltd and Unison Property Corporation.

Celine’s career spans roles in commercial real estate and the building regulatory space, as well as extensive experience in the not-for-profit sector. She brings expertise across a range of business administration functions, including strategic planning, governance, compliance, project management, reporting and business continuity.

Celine has a successful track record of initiating and managing change to strengthen service delivery, improve efficiencies, mitigate risks and optimise performance.

Celine holds a Masters in Business and Management and a Diploma in Quality Auditing.


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Sheri Johnston

Director Finance

Sheri has over 25 years of finance experience in Canada and Australia. Her career includes positions at a Big 4 audit firm, the banking sector and a not-for profit organisation dedicated to young people.

In Sheri’s diverse roles she has managed offshored teams, risk and compliance, legal and finance, acted as company secretary, implemented process improvement and change initiatives and delivered an organisation-wide software project. Her passions include the development and mentoring of engaged, high-performing teams and working within the not-for-profit sector.

Sheri is a Chartered Accountant, holds a Bachelor of Economics and is a Fellow of the Governance Institute of Australia. Sheri also volunteers as a non-executive director on the Board of a not-for-profit organisation and a school.

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Danni Nash

Director Asset Management

Over the past 15 years Danni has worked in a range of roles across not for profit, local and state government as well as private practice. She brings to Unison extensive experience in social housing combined with a passion to create opportunities for meaningful engagement to inform strategy and decision making. 

Danni’s career has centered on community infrastructure, particularly the development, asset management and program delivery of social housing programs, public infrastructure and local community facilities. This whole of asset life cycle understanding is complemented by hands on experience working on large building sites in architectural design and delivery of placemaking community engagement initiatives. A theme in her work has been the improvement of organisational systems to create social impact.

Danni has completed post graduate qualifications in housing management, social sciences, environment and planning. She holds a Bachelor of Architecture (Hons) and has undertaken further study in public participation, project management and organisational change theory.