In 2026, luxury will no longer be measured solely by aesthetics or location, but by its ability to stand the test of time and generations. According to Sotheby's International Realty Luxury Outlook Report 2026, multigenerational living is emerging as a major trend, reflecting a new vision of heritage: sustainable, evolving and deeply human.
A response to new lifestyles
The return to more deeply rooted family values, combined with increasing international mobility, is prompting buyers to rethink the way they live. Properties that can accommodate several generations, thanks to annexes, separate wings or self-contained spaces, meet this need for proximity while preserving everyone’s privacy. This configuration is particularly appealing to families who want to combine privacy, sharing and flexibility.
Properties designed to evolve over time
Multigenerational real estate is characterised by long-term design. Generous volumes, fluid circulation and flexible spaces allow properties to adapt to different uses without losing their architectural coherence. Independent suites, outbuildings or separate entrances offer sustainable configurations that can evolve over generations. According to the Sotheby’s International Realty Luxury Outlook Report, this adaptability enhances the heritage value of properties, making them as relevant today as they will be in decades to come.
Luxury guided by the concept of transmission
Beyond the functional aspect, multigenerational living reflects a desire to view property as an inheritance. Buyers favour properties that will retain their appeal over the decades, while adapting to successive lifestyles. This approach embodies an emotional, meaningful form of luxury, where the home becomes a true anchor for the family.
A lasting trend on international markets
In the most sought-after residential markets, multigenerational property is establishing itself as a sustainable asset management solution. In Belgium, this model fits naturally into historic areas, mansions and exceptional properties offering great flexibility of use. These properties attract an international clientele keen to structure their real estate assets around residences that can be passed down through the generations without losing their value or character.
Luxury with an eye to the future
Multigenerational living embodies a new definition of luxury, focused on continuity and sharing. Designed to accommodate several generations, these living spaces combine comfort, flexibility and family memories. It is a vision of luxury that, as highlighted in the Sotheby’s International Realty Luxury Outlook Report 2026, transforms real estate into a living legacy, imbued with meaning and tradition.
