Our Management Team

cliff(1).pngCliff Stewart 
B. Surv., M.I.S. Aust.
Registered Land and Mining Surveyor
Managing Director of Stewart Surveys

Cliff is a Land Surveyor, registered under the Surveying and Spatial Information Act, 2002 and has a broad background in the survey and design of small and large scale urban and rural land development projects with over 30 years experience. 

Cliff is a Mine Surveyor, registered under the Surveying and Spatial Information Act, 2002 and is authorised for all aspects of both underground and open pit mine surveying including the statutory and title surveys required by the Department of Mineral Resources & Energy. Cliff has worked on more than 13 mine sites covering all aspects of mine surveying tasks.

Cliff has also developed specialist skills in road, feedlot and irrigation survey and design.


kathryn.pngKathryn Yigman
BLArch (UNSW), MEnvMangt (UNSW) 
Registered Landscape Architect #1493
Director of Stewart Surveys

Kathryn is a registered Landscape Architect with a Masters in Environmental Management. Kathryn has 10 years experience in this field. She brings to a project her ability to understand the complex relationship between the natural and built environments. Her strong commitment to environmentally responsible design solutions have resulted in a number of meaningful and ecologically sustainable projects.

Kathryn has extensive experience in documentation, analytical and project organisation/management skills, which enables her to lead and participate in multi-disciplinary teams for a variety of projects.



lincoln.pngLincoln Stewart
B.SpSc (Surv.) (Current), Private Pilots Licence ARN 816178
Director of Stewart Surveys

Lincoln has been with Stewart Surveys since 2006. He is currently studying the Bachelor of Spatial Science (Surveying) degree by distance education and will become a registered surveyor. Lincoln is proficient in the use of the latest technologies in the surveying field. He specialises in the use of GPS equipment and the application of machine control systems in civil construction works. Lincoln is the chief controller of our UAV (unmanned aerial vehicle) system, having his private pilots licence and CASA approved operator certificate. His experience both in the field and office have gained him a wealth of knowledge in the application of the latest technology to all of our surveying practices ensuring state of the art surveying services are provided.