Chair

Mr. Papantonis was elected as Chair of the Board of Directors in 2019, after serving as Vice Chair since 2017. He is an engineer and President and founder of Nauset Construction, a full-service construction company providing pre-construction, construction management, design-build, and general contracting services throughout New England.

Vice-chair

After serving for twelve years as a member of the Family Selection Committee and serving three years as the Chair of the Breakfast Event Committee, Mary Cerio was elected to the Board of Directors in 2021. She is the CEO and Co-Founder of 42 North Capital, a real estate private equity firm focused on value-add investments throughout New England. In her role as CEO, she is responsible for the firm’s operations oversight, capital raising, investor relations, and portfolio management.

Mr. Brown joined the Board in 2017. As Managing Director of Real Estate at Preservation of Affordable Housing (POAH), he oversees the activities of all real estate development staff, manages resource allocation and department budgets, and establishes strategic initiatives for the organization. Mr. Brown is a member of the Board of Trustees of the Boston Architectural College and a member of the Town of Sherborn Zoning Board of Appeals.

Jonathan Evans has built a career designing impactful projects that advance justice in the built environment. At MASS Design Group, he is a Principal leading the Boston Studio, where he stewards a portfolio of civic projects and housing developments. During his tenure at MASS,  Jonathan served as the principal-in-charge of the architectural scope for “The Embrace”, a memorial dedicated to the legacies of Dr. Martin Luther King, Jr. and Coretta Scott, and the power of love that their partnership embodied. His civic work also includes the creation of public realm projects and masterplanning initiatives, primarily in communities that have been historically disadvantaged and underserved.  

As a Build Day volunteer for over 21 years and after serving in the Homeowner Selection Committee for 9 years, Sergio Toscano was elected to the Board of Directors in 2022.  He has served as the Chair of Habitat’s Homeowner Selection Committee since 2021. Mr. Toscano is Vice President of IT Risk Governance at Brown Brothers Harriman, a privately owned and managed financial services firm.  As Vice President, he is responsible for managing technology audit and regulatory requirements against an industry technology control framework and coordinating official responses to reduce risk exposure.

President and CEO

Mr. Kostaras was appointed as President and CEO of Habitat for Humanity Greater Boston in November, 2019. He is a registered architect, urban planner, and former Senior Fellow at the Institute for International Urban Development. He was also the Executive Director of the City of Somerville’s Office of Strategic Planning and Community Development, and prior to that, Assistant Director for Economic Development at the Boston Planning and Development Agency (former BRA). Jim was a Lecturer in Urban Planning and Design at the Harvard and, more recently, an adjunct professor at Wentworth and Northeastern. For over 28 years, Jim and his wife have lived in West Roxbury.