This stunning Spanish estate sits on a palm-lined promenade just 100 feet from the beach, on one of the largest lots in Coronado. The historical landmark encompasses a 13,129 square-foot main house, sprawling guest house, and private garden sanctuary with tranquil fountains and estancia. Originally built for business magnate W.A. Gunn, the four-bedroom (option for five), eight-bathroom abode features vintage Hollywood glamour adorned with state-of-the-art amenities for optimal luxury living space, replete with castle-like characteristics. Conceived by the illustrious Richard Requa in 1925, the previous owner preserved priceless historical heritage. Dominated by an impressive turret that acts as an entrance hall, the home's exotic allure is undeniable, revealing a stunning foyer with a spiral staircase and striking, hand-hewn beams. Echoing the kind of extravagance that underscored the 1920s, "Coronado Castle" perfectly captures the era's zeitgeist, rife with opulent tile flooring, ornate ironwork, and stained-glass touches. An immaculately hand-painted coffered ceiling dominates the formal dining room, punctuating the voluminous expanse that bleeds outward to the pool deck via a trio of custom steel glass doors. Grounded in reclaimed 18th-century European terracotta tile, Spanish embellishments abound. A capacious kitchen is poised for entertaining, appointed with an 80-inch La Cornue range and rotisserie, double Subzero fridge, Miele steam oven, and coffee station, plus a wet bar. Illuminated by custom light fixtures, the kitchen is anchored by an immense marble island. Preserving period details while meticulously updating the home to modern-day standards, historically accurate embellishments have been implemented throughout. Reimagined with an opulent mix of rare finishes and Moorish tiling sourced from around the world, new renovations masterfully mirror Requa's original concept and inspirations. Evoking a 5-star feel with a firepit lounge, wet bar, and dining area, the turret's third-floor roof deck affords panoramic ocean views. The lavish basement is just as impressive. Designed with a grand staircase and soaring ceilings, the voluminous expanse boasts a golf simulator, media room with bar, trophy room, 25-seat movie theater with projector, 1,300+ SqFt world-class gym, and full spa with dry sauna, massage table, and ice bath. Inducing an air of timeless luxury, a stunning pool deck sets the stage for summertime soirees, complete with 250-year-old stonework, Moorish ironwork, a full outdoor kitchen, and dining estancia. The lush oasis includes 100-year-old rustic olive trees, three fountains, a putting green, a secret garden, and a dog run. Perfect for out-of-town guests, a detached guest house is equally sumptuous, appointed with a full bathroom and kitchen. Celebrating the spirit of Requa's original design while fully embracing modern-day convenience, this historic home is a part of the Mills Act, which allows for reduced property taxes. Thoughtfully updated with a four-car garage with golf cart parking, the estate includes an additional five coveted off-street parking spots a rarity in beach enclaves. A legacy estate that offers unmatched attention to detail, this is your chance to own one of the most sought-after exclusive properties in Southern California.