1040 4th St 405 Premier penthouse living just four blocks from the beach and Montana Avenue.This front-facing, two-story residence offers 3 bedrooms, 3 bathrooms, and approximately 2, 243 sq ft of light-filled living space. Soaring 18-foot double-height windows and French doors open to a private balcony, creating seamless indoor-outdoor flow. The open-concept living and dining areas connect to a sleek chef's kitchen with top-tier appliances and modern finishes. The main-level primary suite features a custom walk-in closet and spa-inspired bath with soaking tub, separate shower, and dual vanity. A private side patio offers an additional outdoor retreat. A versatile loft and two ensuite bedrooms provide flexible living and privacy. Glass railings enhance the bright, contemporary feel throughout. The showstopper: an expansive, exclusive rooftop deck, remarkably private and ideal for entertaining or sunset lounging. Additional highlights include a dedicated laundry room, multiple storage spaces, and three side-by-side parking spots. A rare penthouse opportunity in one of Santa Monica's most coveted locations.