2/5/2025
AMSTERDAM – 3stone, a leading independent boutique advisory firm in the Dutch real estate market, announces the addition of Mathijs Flierman and Renaldo Thewissen as new Partners. The expansion of the partnership marks a significant step in the firm’s continued growth and diversification.
After establishing the investment department at Troostwijk Makelaars O.G., Mathijs joined Cushman & Wakefield in 2007 as Head of Capital Markets and Board Member. Over his sixteen-year tenure, he played a pivotal role in the expansion and professionalization of the firm’s investment advisory practice. Mathijs has built a broad track record of acquisition and disposal mandates across all real estate sectors, working with domestic and international investors, developers, and lenders. He now transitions from a senior leadership career to his core focus: advising on investment transactions.
Until the end of 2023, Renaldo served as Associate Director within Cushman & Wakefield’s Capital Markets team. Since 2019, he co-led the build-out and growth of the firm’s residential investment practice, advising developers and institutional investors on the acquisition and sale of new-build assets, development sites, and residential portfolios. Renaldo began his career at Round Hill Capital, where he was involved in the €1.4 billion Heimstaden residential portfolio transaction in 2019.
Founded in 2007 by Eric Heijkoop, Marc Rimmelzwaan and Gerard Lakeman, 3stone Real Estate is headquartered in the WTC Amsterdam. The firm is a trusted advisor to investors, developers, financiers and occupiers, known for its expertise and hands-on advisory approach in both investment and leasing mandates. The addition of Flierman and Thewissen is a strategic move to further strengthen the firm’s market position and broaden the scope of its activities.
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