


Our Vision
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Optimal Sustainability Advisors (OSA) was founded in response to growing regulatory sustainability and socioeconomic challenges in the real-estate and construction sectors.
We want to ensure responsible and sustainable leadership becomes standard practice
throughout our industry. Our primary objective is to guide our clients to achieve the best
possible commercial success as they transition to a net-zero economy.
Unmeasured risk is unmanageable risk!
What Sets Us Apart
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We pride ourselves on our extensive experience in construction and project delivery, which underpins our dedication to real estate climate mitigation and adaptation strategies. Our sustainability guidance is informed by both commercial and socio-economic perspectives, enabling businesses to manage the transition to a net-zero economy.
As property models evolve due to global trends, companies that develop resilient long-term strategies for moving towards a net-zero and circular economy will distinguish themselves. Such adaptability inspires confidence among stakeholders, employees, customers, and shareholders during times of significant transformation.
Brian
Cunningham

Brian has worked in the construction industry for over 40 years.
In recent years, his interests have turned to sustainability, decarbonisation, and the role of the construction and the real estate industry in contributing to the achievement of the Irish Governments and EU climate goals.
As his knowledge and expertise in this area has grown, he has been asked to contribute to industry publications and international conferences as a subject matter expert.
In addition to the clear ethical considerations, Brian’s approach to sustainability for the real estate sector is to give honest, accessible and practical advice. He strongly believes that doing the right thing for the environment can live alongside profitability.
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