A shared appreciation of your land development successes which relies on affordable, reliable results plus prompt solutions that avoid confusing land titling issues. This is one of the commitments you will gain every time you partner with SDG.

Our Value To You

Why SDG is the right choice

Are you planning a large mixed use residential development or wanting to subdivide your land? Maybe you have a waterfront property and are thinking of building or modifying existing waterfront structures or perhaps you require a survey to be used by your design consultants.

Whatever outcome you desire, you will need Survey Professionals competent in a broad range of related surveying disciplines. The success of your project relies on affordable, reliable results plus prompt professional service.

Our History

After 20 years as successful survey businesses respectively, in December 2010 Gary Edwards & Associates and Turner Surveying merged to form SDG. With a shared business philosophy of building trusted professional relationships and providing industry leading service, SDG quickly grew to become one of Sydney’s largest and most respected land surveying companies.

In March 2012, SDG acquired the Pittwater based practice of Souter & Associates. This practice was Sydney’s leading boutique consultancy specialising in Waterfront titling surveys and advice. The acquisition of Souter & Associates broadened the expertise of SDG.

Our Community Involvement

Within the community that we live and work in there are many great organisations providing for the local community and helping those out in need.
At SDG we believe we have a corporate responsibility to help organisations that help others. SDG has been proud to support some of the following organisations.

Our Affiliations

SDG and the team are members with the following key professional bodies. Membership to these organisations provide peace of mind that the highest level of professionalism and ethics will be employed on your projects.




Our Team

Successful projects begin and end with successful partnerships. Meet the senior team at SDG. Experienced individuals renowned for delivering on their promises and giving you the right advice.

  • Craig Turner
    Craig Turner
    Managing Director
  • Alan Turner
    Alan Turner
  • Gary Edwards
    Gary Edwards
  • Phillip Dowling
    Phillip Dowling
    Operations Manager
  • Vicki Tester
    Vicki Tester
    Registered Surveyor
  • Michael Trifiro
    Michael Trifiro
    Registered Surveyor
  • David Bromhead
    David Bromhead
    Registered Surveyor
  • Sandy Richardson
    Sandy Richardson
    Registered Surveyor


Our Values

At SDG we believe in our 4 core values. These values are adopted and promoted across the company. They are the four cornerstones that support and underpin the way in which we conduct our business, interact with clients, provide for our team and operate within SDG and the wider community.


We take responsibility for all our decisions and actions. We honour commitments, meet expectations and fulfil requirements.


We are dedicated to achieving excellence in all we do by consistently delivering on commitments, being innovative in our approaches and providing a resourced environment for best practices.


We are honest and ethical in all our actions and treat others with mutual respect.

Our Team

We believe that our greatest asset is our team.  We strive for a workplace where safety, opportunity, openness, enthusiasm, diversity, teamwork, accountability, professional development and a sense of purpose combine to provide a rewarding experience that promotes fairness, dignity and respect for all team members and allows for a healthy work/life balance.

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