Rare opportunity to own a private estate on 4.99 acres in unincorporated Argyle, featuring approximately 4,478 square feet of combined living space across two private residences. Offering exceptional privacy, versatility, and a lower overall tax burden than many incorporated areas, this one-of-a-kind property was extensively renovated down to the studs around 2014, and the guest house was built during the same transformation. Thoughtfully maintained, the estate adapts to a variety of lifestyles. The approximately 3,150-square-foot main residence is surrounded by mature trees and beautifully landscaped grounds with master gardener touches, creating a peaceful setting. Large front and rear patios, along with the pool, covered pergola, and outdoor kitchen, provide inviting spaces for relaxation and entertaining. Privately tucked away behind its own automatic-gated entrance and long driveway, the separate approximately 1,328-square-foot guest house offers 2 bedrooms, 2 full bathrooms, and a 2-car garage. Naturally screened from the main residence by dense, mature trees, the guest house is ideal for multigenerational living, long-term guests, a private workspace, or investment opportunities. The impressive 30x40 workshop offers exceptional flexibility, with spray foam insulation, a 12-foot overhead door, plumbing, electrical service, and a full bath. A dedicated, enclosed fitness room adds functionality while keeping the workshop area separate for projects and storage. Whether used for a home business, hobbies, recreation, or equipment storage, this versatile space is a rare amenity. A whole-home generator powers both the main residence and the workshop, offering peace of mind during power outages. The grounds are equally impressive, featuring two automatic gated entrances, long private driveways, a creek along the property's rear, a large fenced garden, lush, mature trees, and room for horses.