A €70 million mansion on Marbella’s Golden Mile leads Spain’s ten most expensive homes in 2026. The Costa del Sol and Mallorca contain every residence in idealista’s current national ranking.

Buying a luxury villa in Spain requires thorough legal checks before contracts are signed. Due diligence covers ownership records, planning status and professional advice for overseas purchasers.

Three Spanish locations feature among Europe’s ten highest-priced waterfront markets in Engel & Völkers’ 2026 ranking. Marbella, Mallorca and Ibiza reflect the premium placed on first-line coastal settings.

A €3.25 million apartment is for sale within Casa Burés, Barcelona’s landmark Modernista residence. Completed in 1900, the Eixample building retains stained glass, sculpted stonework and period detailing.

Italy’s luxury second-home market has doubled over ten years, according to Patrigest and Santandrea. Portofino commands €13,600 per m², while Lake Como continues to attract high-net-worth international buyers.