Urban-Development-Institute-of-Australia-UDIA-Danni-Addison.jpgDanni Addison

Chief Executive Officer


Danni Addison is the Victorian CEO of the Urban Development Institute of Australia (UDIA) – the nation’s key representative body for the urban development industry.

An accomplished and reputable property expert, Danni uses her influence to protect and promote the industry’s best interests. She is known for her informed, pragmatic and solutions-based approach, as she continues to lead public agenda on behalf of UDIA’s large, engaged membership.

Danni is passionate about enabling affordability and accessibility for all home buyers, reducing unnecessary regulatory burden on the housing sector, and achieving an efficient planning system that delivers positive outcomes for Victoria’s future.

She is also a keen advocate for gender diversity in the property and development industry, making considerable effort to profile and grow the influence of women making a difference in the sector.

Danni has an impressive track record in advocacy, policy, political engagement and stakeholder management, with previous roles as Senior Advisor to the State Government, and Policy Advisor and Public Affairs Manager at the Property Council of Australia.

Additionally, she is a dynamic and nationally recognised spokesperson, regularly sharing her property knowledge and industry acumen through media, events and keynote presentations. 


John Casey

Policy and Advocacy Director



John manages UDIA’s policy, advocacy and research activities. He provides an active voice for the urban development industry; shaping, leading and influencing public policy and debate. John also oversees UDIA’s policy related committees.



Angela Gaedke
Commercial Director



Angela is responsible for creating industry partnerships and developing new business initiatives for UDIA. She plays a critical role in driving growth of the organisation and shaping its overall strategic direction. 



Hyatt Nidam

Marketing and Communications Manager


Hyatt manages communications from the UDIA to its members, stakeholders, media and the broader public. She builds awareness around UDIA’s policy priorities, advocacy agenda and commercial activities, and in doing so enhances the organisation’s overall reputation and influence. 

Georgia Turner

Event Manager



Georgia manages UDIA’s events team and is responsible for end-to-end delivery of the annual calendar of events and Awards for Excellence Program.



Jess Gersun

Event Coordinator



Jess plays a key role in the end-to-end delivery of UDIA’s annual calendar of events and Awards for Excellence Program.


Ricki Hersburgh

Sustainability Manager


Ricki manages UDIA’s environmental and sustainability areas including the EnviroDevelopment program. Additionally, she oversees the Sustainable Development Committee which drives sustainability in the development industry through policy, advocacy and research initiatives.



Rebecca Elliston

Professional Development and Administration Coordinator


Rebecca is responsible for managing UDIA's Property Development program, in addition to a suite of administerial duties within the UDIA office. Her role spans events, member services, communications and staff support as required. 

Jenn Leddin

Membership and Operations Manager;
 Executive Assistant to the CEO 


Jessica Stratton
Event Manager  

Olivia O'Connor

Policy Officer


Kay Lyne