Located in the crown jewel of McKinney's Historic District, this rare property offers two independent living spaces just a 4-minute walk from Downtown McKinney—a beautifully updated 4-bedroom, 2-bath main residence plus a fully furnished 703 sq ft second residence. Whether you're accommodating multigenerational living, providing private space for aging parents or returning college students, creating a detached home office or studio, welcoming long-term guests, or generating rental income, this property delivers a level of flexibility that's exceptionally difficult to find. The second residence includes its own kitchen and full bath and has already rented on Airbnb for up to $150 per night. Inside the main home, original hardwood floors, abundant natural light, and an open-concept layout blend historic character with modern functionality. The kitchen serves as the heart of the home with quartz countertops, a classic subway tile backsplash, a striking blue island, stainless steel appliances, and generous storage, while both bathrooms have been thoughtfully updated with modern finishes. Each bedroom includes its own walk-in closet, providing exceptional storage and everyday convenience. Beyond its flexibility, the home offers extensive turnkey system upgrades for long-term peace of mind, including cast iron plumbing replaced to the city, a new electrical panel, tankless water heaters, added insulation, updated windows, and a 2024 HVAC system. Outdoors, enjoy a rare oversized backyard with a private patio—ideal for entertaining, gardening, or simply relaxing. Just steps from Downtown McKinney's boutiques, dining, parks, and year-round events, this is a rare opportunity to own a thoughtfully updated historic property that offers the lifestyle buyers love with the flexibility, functionality, and income-producing potential that are nearly impossible to replicate.