At M21, We Guide You Towards Excellence.

Next level lifestyle is about flexibility, freedom, and choosing where and how you want to live. With remote work, easy travel, and a growing demand for a better quality of life, more people than ever embrace sunny, cosmopolitan destinations. Marbella offers the perfect blend of outdoor living, sports, culture, and the most comfortable climate in Europe, at exceptional value.

M21 specializes in exceptional quality homes that reflect your ambitions, lifestyle, and financial goals. Whether it is as primary residence, second home, or strategic investment, we ensure a personal experience tailored to your needs.

Founded in 2016 by Martin Nicholaz Dellavalierra (Msc), M21 was created in response to the increasing need for trusted, professional guidance when buying property in Marbella. Having lived in Marbella for 15 years, we offer deep local expertise and insight. Real estate professional, Sebastian Merling Hansen (MDE), joined from Copenhagen in 2018 and became partner in 2022, further strengthening our team.

With offices in Marbella, Puerto Banus, Aloha, Sotogrande, Mallorca and Copenhagen M21 connects European and Overseas clients with the finest homes in Southern Spain, offering exclusive listings, new developments and full market access.

Persistence today leads to victory tomorrow - your dream home and lifestyle is within reach. We are here to ensure your real estate investment aligns with your vision of success.

M21 provides tailor-made real estate advice based on Scandinavian standards, ensuring a personal and enjoyable property journey:

✅ Expert guidance, price evaluations, market insights, negotiation strategies, refurbishments, and long-term value assessments.

✅ Legal support for a smooth transaction.

✅ Exclusive client care when visiting Marbella. Diversified team of 14 nationalities across 5 venues. 

✅ Networking – Invitations to events, including sports and social gatherings.

M21 Realty House

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Teams

Offices

M21 Realty House

Org chart

Teams

Offices

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