Welcome to 3585 Ambrose Cir, unit #1, a brand-new detached luxury ADU located in the desirable Mountain Gate community of Corona, offering modern design, privacy, and flexible lease options. Built in 2024, this approximately 1,276 sq ft residence features 3 bedrooms and 2.5 bathrooms with high-end finishes throughout, an open-concept living and dining area, contemporary kitchen with wet bar, in-unit laundry, solar system, and abundant natural light; outdoor living includes access to a resort-style pool and a private, separate spa, along with a balcony and dedicated outdoor areas within a beautifully landscaped, park-like setting. The unit may be leased furnished or unfurnished. Lease options include $3,800/month for the detached ADU only or $9,000/month for the entire property (main residence plus attached and detached ADUs), subject to owner approval, with owner open to a master tenant arrangement and subleasing subject to approval; the property sits on an approximately 14,810 sq ft lot with no HOA and offers access to Mountain Gate Park amenities, including courts, fields, trails, playgrounds, and picnic areas, making this a rare opportunity to lease a brand-new luxury ADU in Corona.