Katarzyna Sielewicz Joins Avison Young Poland as Senior Consultant

16 September 2025

Avison Young has appointed Katarzyna Sielewicz as Senior Consultant within its Investment Advisory team in Poland.

Sielewicz holds a master’s degree in finance from the Stockholm University School of Business and studied at Cass Business School in London during an exchange semester. She began her career in London with Cushman & Wakefield’s global Research and Strategic Advisory team (formerly DTZ), where she worked on international real estate projects.

In Warsaw, she continued to build her expertise in investment and asset management at a boutique advisory firm, providing support to domestic and international clients active in the Polish market.

At Avison Young, Sielewicz will focus on advising clients on asset acquisitions and disposals, and will take part in due diligence processes across multiple property sectors.

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