About

As architects, we founded OPOPLAN for one simple reason, bad design gives us the chills. And we kept seeing the same mediocre designs cropping up everywhere – houses that don’t respond to the path of the sun or the beautiful lots on which they’re built, that turn their backs on amazing views or that simply don’t work for the people who live in them.

We wish everyone was in a position to hire an architect to design their new home as we know the immense value an architect can add. Knowing that for many that is an impossible dream, we set out to change things and create a system that can bring good design to everyone who’s trying to develop their new home.            Join the design revolution !

Our Mission

We genuinely believe that, through OPOPLAN, we can change lives, one great house at a time. We know how significant an architect’s input is in the design of a home, and we believe that everyone should be able to reap the benefits of a bespoke design solution.  We want to see beautiful, well-built homes that make the most of the sun and the landscape in which they’re built, and we dream of a day when people across the world can live in a home that fully meets their needs and brings ease and joy to their lives.

Our Team


Brian O’Brien

CEO, Architect, Founder An award-winning architect with over twenty years in practice, Brian has a Masters in Architecture from UC Berkeley. Brian is passionate about getting the little things in the design of every family home just right, because these are the things that make life better.

Gráinne Kennedy

CMO, Co-Founder With a background in marketing, advertising and market research, Gráinne has experience of launching and building international brands. A love for property led Gráinne to join Opoplan where helping families get the best possible house plan for their lot and budget is a major driver.



Trevor Murchu, CTO
With over a decade in software creation, Trevor has led development teams, creating complex software, from startup to enterprise scales.

Sean Leavy, Senior Developer
Sean is an experienced JAVA developer who has created and manages Opoplan’s software across the full stack.

Tom Garvin, Senior BIM Manager
With an advanced degree in Architectural Technology, specialising in BIM, Tom has created and manages Opoplan’s BIM systems and Revitt customization protocols.


Start Your Custom Design Journey Today!