Atland nears €10b AUM with Sienna Real Estate buy

Pan-European real estate asset manager Atland is set to acquire Sienna Real Estate from Groupe Bruxelles Lambert (GBL), pushing its total AUM to beyond €10 bn.

Property

Sienna Real Estate, with approximately €5 bn in assets under management and offices across Europe and South Korea, will strengthen Atland's ability to support multi-country investment strategies for its institutional clients.
This acquisition is a key part of Atland's pan-European expansion, driven by its growing French real estate investment trusts (SCPIs) and increasing international mandates, which are expected to reach over €600 mln outside France by the end of 2025. The integration will enhance Atland's operational asset and property management in Europe, bringing 80 new employees (70 outside France) and a complementary institutional client base.
The deal offers several benefits, including a stronger European presence in five locations (Germany, the Netherlands, France, Spain and the UK), access to Asian investors through Sienna's South Korean office, access to mandates with European, Asian and Middle Eastern institutional investors and operational synergies that will expand Atland's capabilities into areas like private real estate debt. By positioning itself as an integrated European platform, Atland aims to meet the growing demand from institutional investors for diversified pan-European strategies.