142 Union Jack Mall Recently completed multi-million-dollar renovation elevates this four-story architectural residence, discreetly nestled on a cul-de-sac walk street that evokes the serenity of a hidden park. This exceptional home offers an atmosphere of tranquility just steps from the beach and the Ballona Lagoon, and moments from the Marina's premier dining, boutique shopping, theaters, and picturesque canal paths. Thoughtfully designed with 4 bedrooms and 5.5 baths, the residence showcases an open-concept layout bathed in natural light, featuring Onyx white porcelain tile floors, refined custom finishes, and recessed LED lighting throughout. The gourmet kitchen is a masterpiece of design, appointed with Quartzite Naica countertops, a waterfall island, marble Arabescato Silver Honed backsplash, luxe high-gloss and soft-close cabinetry with maple and birch interiors, and Wolf/Sub-Zero appliances. A sit-up island bar and adjoining kitchen dining area complete with a cozy fireplace and view patio create an inviting central gathering space that flows seamlessly into the butler's pantry, spacious dining area, and living room with a stunning fireplace and a balcony overlooking the walk street park. The upper level is anchored by an expansive primary suite, offering a tranquil sitting area, private terrace with greenbelt park views, and a spa-inspired bath featuring white-oak cabinetry, Carrara marble accents, dual sinks, and a generous walk-in, designer closet. Two additional upstairs bedroom suites are enriched by natural light and elevated views. The first floor hosts a maid's/guest suite and a large family room ideal for entertaining, with flexible space for an office, wine room, or playroom. A spacious private patio completes this level, providing an exceptional indoor-outdoor living environment. An elevator services all floors, including the top-level office/loft/gym/entertainment, flexible space, which opens to two expansive rooftop decks showcasing sweeping city, mountain, and peek-a-boo ocean views. Recent enhancements include new stucco, energy-efficient windows and doors, a PVC roof, updated landscaping and lighting, and a 3-car garage with new epoxy flooring. More than a home, this is a striking statement of modern design, comfort, and craftsmanship on the coveted Silver Strand.