PRAEMIA REIM FRANCE ANNOUNCES THE RENEWAL OF RTE'S LEASE FOR 11 YEARS ACROSS THE ENTIRETY OF THE WINDOW BUILDING IN PARIS – LA DÉFENSE

Paris, 5 March 2026 – Praemia REIM France, a leading real estate asset management firm with €35 billion in assets under management, announces the renewal of RTE's lease for a firm term of 11 years across the entirety of the Window building, totalling 44,000 sq m at the heart of Paris – La Défense, Europe's leading business district.

Acquired in 2021 by Praemia REIM France and Société Générale Assurances, the Window building stands as one of the most iconic assets in the Paris – La Défense business district. RTE's headquarters, this "horizontal" tower standing 47 metres tall (7 storeys, not classified as a high-rise), benefits from exceptional visibility with a 150-linear-metre façade overlooking the Westfield Les 4 Temps shopping centre, one of the most frequented in Europe.

Certified HQE Excellent and BREEAM Excellent, the Window building offers premium amenities meeting the latest occupier standards: bright, flexible, open-plan office floors of 4,500 sq m with floor-to-ceiling glazing offering panoramic views, various food and beverage services including a brasserie, an auditorium, a concierge service, and two large atriums designed to foster well-being and collaboration.

Charles Ragons, Chief Executive Officer of Praemia REIM France overseeing Real Estate, states: " I am delighted by the renewal of RTE's lease, which reflects our ability to build long-term, partnership-based relationships with our tenants and demonstrates the enduring attractiveness of La Défense. The quality of the Window building and its services, its strategic location at the heart of the business district, and its exceptional visibility are key factors in retaining a first-class tenant such as RTE. This transaction contributes to securing our rental income and is part of our active leasing strategy."

Another significant transaction in late 2025:

Alstom lease renewal: across the Sigma office complex in Saint-Ouen-sur-Seine (Seine-Saint-Denis). This 18,000 sq m complex hosts the tertiary activities of the Alstom Group. The lease has been renewed for a firm term of 10 years, confirming Praemia REIM France's ability to secure key tenants across its assets.

ABOUT PRAEMIA REIM

Praemia REIM is a leading European real estate asset manager with over €35 billion in assets under management and a portfolio of more than 1,500 properties across 12 countries. The company designs and manages a broad range of real estate investment solutions covering the office, healthcare and education, retail, residential and hospitality sectors, with a strong commitment to long-term performance and ESG integration. It employs more than 450 professionals in France, Germany, Luxembourg, Italy, Spain, Singapore and the United Kingdom.