John Christodoulou (full name Yianakis Theophani Christodoulou) is a Greek Cypriot-British businessman, the self-made billionaire Founder and Owner of the Yianis Group, a major London-based real estate firm with properties across the U.K. and Europe. Born in Cyprus, his family fled the country after the Turkish invasion of the island in 1974 and resettled in London.

Christodoulou dropped out of school at age 16 and began his career as a trainee diamond mounter, later creating a successful jewelry business (manufacturing, retailing, and designing his own brand). His first property investment was a studio apartment in London, bought with his early profits, marking the pivot to real estate.

• Yianis Group (Founder & Owner): The core private asset, a major London-based real estate firm with a portfolio spanning residential, retail, office, and luxury hotel properties (e.g., Four Seasons in Canary Wharf).
• Early Career: He dropped out of school at 16 and trained as a diamond mounter, running a successful jewelry business.
• Real Estate Strategy: His success is built on acquiring prime real estate and holding properties for long-term investment (developing over 10 million square feet).
• Philanthropy: He founded the Yianis Christodoulou Foundation to support vulnerable children and young people (focusing on education in Cyprus).

John Christodoulou's strategic genius was his commitment to long-term asset hold in high-value urban areas, particularly in London's Canary Wharf and the surrounding areas. The Yianis Group successfully developed over 10 million square feet of real estate, much of which is still held as long-term investments. His structural contribution is tied to the development of central London's commercial and luxury residential infrastructure.

His portfolio includes several four and five-star hotels (e.g., Four Seasons in Canary Wharf), establishing relationships with major hospitality brands like Marriott, Hilton, and Radisson. He lives in Monaco and maintains close ties with Cyprus through his foundation, which supports children's education. His wealth is secured by the colossal, long-term, stable appreciation of his central London real estate portfolio.

John Christodoulou's social impact is structural, stemming from Yianis Group's role in providing essential housing, commercial, and luxury hospitality infrastructure in London. His Yianis Christodoulou Foundation provides a significant structural contribution to children's welfare and education (funding hearing dog partnerships, specialized sports wheelchairs, and schools in Cyprus).

His career is a testament to the profitability of disciplined real estate investment and long-term asset hold in the world's major urban centers.

John Christodoulou maintains the professional, composed style of a real estate executive. His attire is consistently formal and high-quality, favoring tailored suits. His aesthetic reflects stability and immense corporate authority, blending his Cypriot heritage with his mastery of London property finance.

Residing in Monaco, his luxury is the immense security and financial reward derived from his multi-billion dollar fortune. His life is dedicated to real estate investment, luxury hospitality, and high-impact philanthropy.