Lifestyle homes designed to make the everyday extraordinary.


d3 Building Design is a progressive, award winning design led practice established in 2005.  Our studio is based on the beautiful Mornington Peninsula, we are a team of experienced and dedicated designers. We are adept at marrying our clients objectives with the requirements of local authorities and other statutory bodies, negotiating often complex planning consents, and are very experienced in carrying out genuine and productive consultation with local residents and other shareholders.



More than just design. Concept to completion.


We work with you from a concept stage all the way through to the completion of construction. We provide all that is required for your project, from design, through planning & building approval, to on-going consultation during construction.

We work with home owners, developers, builders and businesses.



New Homes

Under Construction

Alterations + Additions


To love where you live.


At d3, we love everything about the Mornington Peninsula. The people, the surroundings, diversity of offering and most importantly the lifestyle. By living on the Mornington Peninsula ourselves we understand how to design homes to suit family life between the bays.