Despite a 6% drop in prices in 2025, forecasts for 2026 point to a major turning point for the real estate market in Issy-les-Moulineaux with the arrival of the Grand Paris Express Line 15 South. The new Issy RER station will bring La Défense to just 18 minutes away, significantly boosting the city’s appeal for professionals working in Paris or the business district.

The Léon Blum neighborhood is set for a major transformation, with the creation of a modernized transport hub and the construction of new residential buildings. Adding to this, internationally renowned architect Daniel Libeskind has been awarded a major architectural project in the heart of the district—an ambitious development that will help redefine the area’s identity and strengthen its attractiveness. Market analysts expect property values in the neighborhood to rise by 3% to 5% as soon as Line 15 opens.

Issy-les-Moulineaux’s most sought-after areas remain Forum Seine, Palais des Congrès, Mail Menand, and the Fort district, where demand is particularly strong. On average, properties stay on the market for 52 days according to Pap, reflecting growing interest in the city.

If you're planning a real estate project, feel free to get in touch. 2026 is shaping up to be a pivotal year for the property market in Issy-les-Moulineaux, offering opportunities you won’t want to miss.