Cannes has the festival, the Croisette and the Palais. Marbella has the Golden Mile, Sierra Blanca and 70+ golf courses. Both compete for HNW European buyers who want a Mediterranean residence with year-round usability. Cannes carries the prestige of pre-1939 European leisure, the May film festival, MIPIM and the wider Cannes-Antibes business calendar. Marbella carries the Andalucía wealth-tax waiver, the Beckham Law, and a per-metre price that runs roughly half the Cannes Croisette benchmark.
This piece runs the comparison honestly. Cannes is more reasonable than Cap Ferrat or Cap d'Antibes on €/m² (because Cannes is a real city, not a trophy peninsula), but the French tax stack hits Cannes the same as it hits the rest of the Riviera. The headline is structural: a €10M Cannes Croisette apartment costs roughly €130,000–€200,000/year more to hold than the equivalent €10M Marbella allocation.
A €10M Cannes Croisette apartment held by a French tax resident attracts roughly €100,000–€135,000/year IFI, plus taxe foncière €15,000–€30,000, plus second-home taxe d'habitation surcharge (Cannes is a tense-zone commune) €8,000–€20,000. Total annual property-tax burden: €123,000–€185,000.
Same €10M apartment in Marbella's Golden Mile: zero regional wealth tax, IBI €6,000–€12,000, IRNR €6,000–€8,000 (non-resident). Total annual property-tax burden: €12,000–€20,000.
Annual delta: €110,000–€165,000 in Marbella's favour, every year of ownership.
Cannes wins on May festival calendar density, French art-de-vivre, easier direct European HNW connectivity from Nice airport, and pre-1939 architectural patina. Marbella wins on after-tax cost, Beckham Law shielding, plot generosity, golf density and resale liquidity.
French figures combine Notaires de France quarterly statistics for Alpes-Maritimes, Sotheby's Cannes market reports and Knight Frank Wealth Report 2024 cross-referencing. The Marbella side is asking prices from our own register: France publishes its completions, Spain publishes none at property level, and we will not present the two as one series.
A €5M Cannes Croisette purchase buys a 180–280 m² sea-view apartment, often in a pre-1960 building requiring further capex. The same €5M on Marbella's Golden Mile buys a 400–700 m² apartment or duplex with terrace and pool access. €5M in Super Cannes secures a 250–400 m² villa on a 1,000–2,000 m² plot. €5M in Nueva Andalucía secures a 500–700 m² villa on 1,500–2,500 m².