Welcome to 54 Holbrook Court! A beautifully maintained 4 bedroom, 4 bathroom detached home tucked on a quiet court in the heart of Unionville, one of Markham's most prestigious and family friendly communities. Offering approximately 2,854 sq ft of above grade living space, this exceptional home sits on a rare pie shaped lot with a 148 foot deep backyard an entertainer's paradise featuring a 2023 Unilock stone patio, BBQ concrete pad, outdoor bar shed, vegetable gardens, perennial planters, and mature fruit trees (apple, plum, pear & cherry). Inside, generous principal rooms flow effortlessly for both everyday living and formal entertaining. The family room anchors the main floor with a natural wood burning fireplace, while a dedicated main floor office accommodates today's work-from home lifestyle. The kitchen connects to a gas stove line for the serious home cook, and the mudroom offers direct two car garage access with rough in for future main floor laundry. Upstairs, the primary suite is a true retreat with two walk-in closets and a stunning (2025) renovated ensuite. Three additional bedrooms offer flexible space for growing families. The finished basement elevates this home further, a custom bar with sink, dual refrigerators, and ice maker creates an entertainment hub unlike any other, alongside a newly renovated 2025 bathroom and fireplace rough in for cozy future nights in. Additional highlights: hardwood floors, updated windows, central vacuum, 2023 owned water heater, furnace coil replaced 2024, and a comprehensive hard-wired Lorex security system (front door, above garage, both sides, and backyard). Steps to Historic Main Street Unionville, TooGood Pond Park, Markville Mall, top ranked Unionville High School, Pierre Elliott Trudeau HS, Hwy 404/407, and GO Transit.