At BuiltSmart Group we pride ourselves on the quality of our team. From vast backgrounds working for the likes of Lendlease, Multiplex, Watpac and Mace to name a few, our team are dedicated to achieving the best results for our customers.

Sean O’Hara

Chief Executive Officer

Bringing more than 25 years of construction experience to the table, Sean is a veteran of the industry. His knowledge of large-scale commercial, residential and industrial projects is without rival, and he has overseen more than $1 Billion of contract work both nationally and abroad.

Sean’s own passions and skills reflect those that are valued by BuiltSmart Group – he has a deep understanding of environmental and economically sustainable building practices, and recognises the benefit of strong, strategic relationships and a hands-on approach to construction.

Sam Eden


Sam’s passion for construction extends well beyond his talents as an Estimator for BuiltSmart Group. His outgoing and infectious personality allows him to foster strong connections with our clients and helps him to develop an understanding of exactly what their wants and needs are.

Over the course of his career to date, Sam has enjoyed working on some of the Central Coast’s largest aged living and multi-storey residential projects, laying testament to his ability to translate an initial plan into a high-quality service and finished product.

Shane Marmara


In an industry that places tremendous value on getting things right, Shane’s passion for perfection is an asset to the BuiltSmart Group team. He has more than two decades of experience in residential, commercial, industrial and structural development under his belt, where he has been the catalyst for a number of significant projects.

Shane also brings extensive experience in energy efficient designs to the table – an area of growing importance in the modern market and one he hopes to continue to see expand.

Shane Penman

Site Manager

With an incredible eye for detail and more than 20 years of practical, hands-on experience, knowledge and trade expertise, Shane is an invaluable part of the day-to-day operations of BuiltSmart Group’s projects.

An expert in all things carpentry, Shane has a genuine passion for construction – a passion which he exudes through his positive attitude every day on the job.

David Gleeson


David is a highly experienced construction professional with exposure in all facets of the industry including commercial, residential, modular, mining accommodation, civil, refurbishment and sports facilities.

Having over fifteen years working in the industry in Ireland and Australia, David has the experience and knowledge to coordinate a project from inception to completion. As an estimator he can use his broad skills to build relationships with project stakeholders to develop a project and estimate to ensure the clients’ needs are achieved within the project budget.

Alex Mitchell

Project Manager

Alex’s passion for construction can be traced back to his early childhood years where he would spend every waking moment building and modifying cubby houses in the family’s backyard.

Alex has since dedicated himself to working in the mining, commercial and residential construction sectors holding a Bachelor Degree in Construction Management and a Cert IV in both safety and leadership. When Alex isn’t on a construction site you will find him near the ocean camping and fishing with his family and friends.