Located on the beautiful Mornington Peninsula sits our boutique building design studio. As a family-owned Australian business, we believe that high-quality customer service and trust are the pillars of positive working relationships with our clients. Our designs are well-considered, balanced, & always strive for better, smarter spaces whilst providing ultimate functionality.

At Third Element Studio, we carefully craft thought-provoking designs that are always created with you, the client, in mind.




Our process, honed over many years is specifically attuned to each client. Third Element’s six-stage process begins with the initial meeting right up until the handover of your new home.

From how you will use space, to the requirements of the land, we will combine functionality with aesthetics to create a project that is a perfect match. We are not just designers – we are someone who cares just as much about your project as you do and are with you every step of the way.


D.Mullett-Treloar & O.Langdon

We have been working with Tristan for 12 months and will continue to use his services in the future. We have been extremely happy with his work, ideas, drawings and professionalism throughout the process. To plan some significant renovations at home, we required council permits, surveys, BAL reports, soil reports, arborist reports and engineering, all of which were organised by Tristan in a very systematic way. The drawings and 3D computer models were vital in planning our renovations, we are thrilled with the results and can’t wait to build. We are now in the process of looking for a builder and may use Tristan to find a building surveyor. We can highly recommend Tristan, especially for those who are first-time renovators and have not been through a council planning process before.


J. & S. Hood

We approached Tristan with concepts in mind of what we were hoping to be able to construct. He had great ability to take our wish list and make it practical as well as ensure there wasn’t any wasted space and our plans were put together in detail ready for the build. I highly recommend Tristan who took our vision and made it a reality. He had great patience and stepped us through the whole planning process including liaising with local authorities to organise building over easements, gaining a better setback and approval for an extra vehicle crossing. Thanks again Tristan.


A. & C. Newton

Third Element Review Tristan provided a very professional service, with clear communication, concise plans, effective liaison with Mornington Shire Planning and an approved Planning Permit without undue delay. Can highly recommend.



Tristan at Third Element Studio designed the layout of our paint shop. He understood exactly what we had in mind, made everything easy to understand and it was above and beyond our expectations once complete. highly recommended.