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Ronan Columb is the Group Managing Director of Castlethorn, one of Ireland’s leading residential property developers. Appointed to the role in 2023, Ronan brings over two decades of leadership experience in construction and development, with a career spanning more than 30 years in the industry.
Since joining Castlethorn in 2004, Ronan has been a driving force behind the company’s growth, first as Construction Manager and later as Construction Director, where he led all construction and quantity surveying operations. Under his leadership, Castlethorn has delivered landmark residential communities known for their design quality, sustainability, and community integration.
Prior to Castlethorn, Ronan spent 14 years with Walls Construction, rising to Divisional Director and gaining extensive experience in large-scale project delivery. As Group MD, he now leads Castlethorn’s strategic direction, championing innovation, operational excellence, and long-term value creation across the organisation.
Sarah Carey is a well known columnist and broadcaster. She’s written for major broadsheets from The Irish Times to The Daily Telegraph on everything from economics to politics, technology and media and is a highly experienced radio and television presenter. Sarah is popular in academia, politics and business and of course, with general audiences who love her personal insights, and open manner.
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Stephen was appointed Chief Executive Officer in August 2019. As CEO of Glenveagh, Stephen is responsible for delivering on the Group’s vision to create Ireland’s leading and most sustainable homebuilder. Stephen has over 20 years’ experience in the construction and property industry in Ireland. Prior to founding his own successful residential development business, Bridgedale Homes, Stephen worked with a number of Ireland’s largest property developers. From 2014 to 2017, Stephen advised and managed the acquisition of Irish residential development opportunities on behalf of TIO RLF. A co-founder of Glenveagh who assumed the CEO role in 2019, Stephen has led the growth and development of the Group since IPO. Glenveagh is one of Ireland’s leading homebuilders and delivered over 2,400 homes in 2024. The company has pioneered the use of Modern Methods of Construction in the industry. It has two key divisions focusing on opening access to sustainable, high-quality homes. Its Homebuilding division is the leading provider of own-door single-family homes, primarily in Dublin and the Greater Dublin Area. Its Partnerships division focuses on creating vibrant communities nationwide through a mix of suburban single-family and urban multi-family developments. Often funded or acquired by the state or state entities, these projects enable it to deliver affordable and high-quality housing options for everyone.
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