Bright Duplex Penthouse T4 with stunning panoramic views over the Tagus River and the 25th of April Bridge, located in the prestigious Estrela district of Lisbon. With a gross private area of 145m² and an 11m² wraparound balcony, this property is set within a classic-style building on the emblematic Praça da Armada — one of Lisbon’s most charming squares, adorned with majestic jacaranda trees and steeped in history, culture, and architectural heritage. On the first floor of this duplex lies the main living area, a closed kitchen, the master suite, a guest bathroom, and a laundry room with storage. This level enjoys five French doors facing south. The upper floor offers three bedrooms bathed in natural light from four Velux windows, as well as an additional bathroom. This residence stands out for its luminosity, the harmony of noble materials, and the meticulous attention to detail. The original wooden shutters and solid wood flooring highlight the authentic and welcoming character of this apartment full of charm. Generous storage and a functional layout make it ideal for those who value both elegance and comfort. The building, facing south and comprising only four apartments and one ground-floor shop, preserves the full charm of traditional Lisbon architecture. Access is via a beautiful, well-lit staircase with wrought-iron railings. Although it does not currently have a lift, there is technical feasibility for installing an external elevator at the rear façade. The building was completely refurbished in the early 2000s, with the façades and staircase fully renovated in 2024, leaving it in excellent condition. The apartment itself is equally impeccable. Perfectly located near the Lisboan International School, CUF Tejo Private Hospital, Avenida 24 de Julho, Avenida de Ceuta, and Avenida Infante Santo, as well as the Ministry of Foreign Affairs, the Palácio and Tapada das Necessidades, LX Factory, the Docas de Santo Amaro dining area, and the banks of the River Tagus. The area benefits from superb accessibility and transport links: situated between the future Infante Santo and Alcântara metro stations, and close to the Alcântara-Terra and Alcântara-Mar train stations, with easy access to the Cascais coastal road, the 25th of April Bridge, and several motorways. Ideal for those seeking to live or invest in one of Lisbon’s most vibrant and dynamic areas, currently undergoing tremendous regeneration and with strong potential future value appreciation.