506 N Chestnut Street Recently appraised at $537, 000, this rare Historic McKinney property offers two independent living spaces just a 4-minute walk from Downtown McKinney. Now offered at $524, 900, the property features a beautifully updated 4-bedroom, 2-bath main residence plus a fully furnished, detached 693 sqft second residence with its own kitchen and full bath. Whether you're accommodating multigenerational living, creating private space for family or guests, or establishing a detached home office or studio, this property offers exceptional flexibility. For those interested in rental income, the detached residence has previously rented on Airbnb for up to $150 per night. Inside the main residence, original hardwood floors, abundant natural light, and an open-concept layout blend historic character with modern functionality. The kitchen features quartz countertops, a classic subway tile backsplash, a striking blue island, stainless steel appliances, and generous storage. Both bathrooms have been thoughtfully updated and all four bedrooms feature walk-in closets. Extensive system improvements add everyday convenience and long-term value, including cast iron plumbing replaced to the city connection, an updated electrical panel, tankless water heaters, added insulation, updated windows, and a 2024 HVAC system. Outdoors, enjoy a rare oversized backyard and private patio, perfect for entertaining, gardening, or relaxing. Just steps from Historic Downtown McKinney's boutiques, restaurants, parks, and year-round events, this distinctive property combines historic charm, meaningful modern improvements, two separate living spaces, and exceptional versatility in a location that's increasingly difficult to replicate.