An architectural gem where history, luxury, and technology blend in perfect harmony. Located on the exclusive Lleó XIII street in Barcelona's Zona Alta, this spectacular property combines the character of an 1890s mansion with a completely new interior, designed with premium materials and state-of-the-art amenities. Meticulously restored by specialists from the Liceu opera house, the residence retains its historic façade, adorned with two stone-sculpted lions and original gargoyles framing the main entrance—symbols of the character and majesty of this unique home. The result is an incomparable urban mansion, an oasis of calm in the heart of the city, surrounded by greenery and with all amenities just steps away. It features three spacious master bedrooms and several multipurpose spaces, such as a gym, study, and mezzanine, adding versatility and comfort to every corner. The property has been renovated with exceptional attention to detail, combining traditional craftsmanship and modern engineering. It features comprehensive soundproofing, double glazing, walls reinforced with metal mesh, and underfloor heating throughout. Centralized home automation allows control of blinds, lights, and climate control, while the surround sound system transforms each room into a sensory experience. High-end finishes—Fantini faucets, Brazilian marble in single pieces, and custom-made woodwork—reinforce the feeling of timeless elegance. The house has four floors (plus a multipurpose space, office, or gym), with a total of 453 m² of living space on a 384 m² plot, complete with a beautiful garden, outdoor dining and kitchen area, swimming pool, and a 229 m² chill-out zone. The ground floor (141 m²) includes a two-car garage, a guest room, a soundproofed gym, a hammam-style wellness bathroom with a steam sauna, and a separate laundry room. From here you access the private garden, the outdoor heart of the house. The first floor (116m2 + terrace) houses a bright living-dining room, a designer open-plan kitchen equipped with Miele appliances, and a bedroom with an en-suite bathroom and dressing room. On the second floor (approximately 110m2) we find the master suite; it offers maximum privacy and comfort, soundproofed with double glazing and double-layered plasterboard walls with metal mesh. It features 15 linear meters of built-in wardrobes with LED lighting and a bathroom beneath the restored dome, clad in Brazilian marble with Fantini fixtures, and accompanied by an integrated sound system that transforms every moment into a sensory experience. Security is guaranteed with a reinforced door and state-of-the-art home automation. The penthouse and mezzanine (61m2) complete the experience with an open-plan space, office, or creative room, and two terraces with panoramic views of Tibidabo and Collserola. The garden is a true urban oasis, with an illuminated pool, chill-out area, dining area under a glass pergola, and an outdoor kitchen with a barbecue, ideal for enjoying the Mediterranean climate in an environment of serenity and exclusivity. An exceptional residence where history, design, and technology coexist in perfect harmony: the true meaning of quiet luxury in Barcelona.