Positioned in the core of historic Main Street Markham, this prominent corner property presents a compelling opportunity for both investors and end-users seeking a high-exposure commercial presence within a character-rich heritage setting. This distinguished 5-bedroom, 4-bath heritage building sits on an oversized lot and offers exceptional flexibility under dual residential and commercial zoning-well-suited for a wide range of professional and institutional uses including medical or dental clinics, private school or educational space, real estate brokerage, legal offices, or other service-based operations. The property features expansive principal rooms, refined architectural detailing, and a highly adaptable interior layout that can be configured to support client-facing businesses, collaborative workspaces, or mixed-use occupancy. A custom chef's kitchen, along with pot lights and built-in speakers throughout, enhances functionality for staff and client engagement alike. Extensive updates completed with permits-including electrical, windows, insulation, siding, driveway, and refreshed interior/exterior finishes-provide operational confidence while maintaining the building's historic appeal. Additional highlights include an insulated and heated garage equipped with an EV charger, supporting modern business needs. The large lot also offers significant redevelopment potential, including the option to introduce ample on-site parking with dual access points from Main Street and Bullock Drive-an invaluable feature for commercial usability and client convenience. Surrounded by established businesses, amenities, transit, and pedestrian activity, this high-visibility location ensures strong accessibility and long-term value. A rare opportunity to secure a landmark property with the scale, zoning, and flexibility to accommodate a wide variety of professional uses in one of Markham's most desirable corridors.