Located in a sought-after area near Avenue Louise and Jardin du Roi, this exceptional duplex penthouse of ±290 m² offers a unique and unobstructed view over Brussels. Situated in a 1950s building with only one apartment per floor, it combines architectural elegance and exclusivity.Sold as a "Casco ++", this rare property offers full freedom of interior design, allowing the future owner to create a completely bespoke living space.The lower level includes a main suite with gas fireplace, dressing room and bathroom, two additional suites each with a private shower room, and a west-facing rear terrace of 15 m².The upper floor opens onto a vast living and dining area featuring a gas insert and large panoramic bay window offering spectacular views of Brussels. A 35 m² space is reserved for the future kitchen, with access to a 20 m² terrace ideally oriented southwest.Technical details: individual cellar included.Parking options available: garage box (€75,000), carport space (€50,000) or outdoor parking (€40,000).