As of early 2026, the most expensive area in France remains the 6th Arrondissement of Paris, particularly the historic Saint-Germain-des-Prés neighborhood. Property prices here frequently exceed €15,000 to €20,000 per square meter due to extreme scarcity and high demand for 18th-century architecture. Outside of the capital, the French Riviera (Côte d'Azur) holds the title for the most expensive coastal real estate, specifically the ultra-exclusive "billionaire's playground" of Saint-Jean-Cap-Ferrat. This peninsula is home to some of the world's most valuable private villas, often fetching tens of millions of euros. Other high-priced contenders include the 7th Arrondissement in Paris (near the Eiffel Tower) and the luxury ski resort of Courchevel 1850 in the Alps. These areas are characterized by international buyers, high-security estates, and a density of Michelin-starred restaurants and luxury boutiques that cater to a global elite.