This stunning detached Altadore home offers over 3,300 sq ft of beautifully designed living space and features a rare underground passageway that connects the home directly to the heated double garage and an impressive 320 sq ft media room/home gym beneath it — an extraordinary amenity not found in typical infill homes! The elegant entry welcomes you into 9’ & 10’ ceilings and with a private main-floor den, perfect for a home office. The gourmet kitchen showcases custom cabinetry, granite counters, Viking appliances, and a walk-in pantry. The open concept kitchen flows into the dining area adorned with a glossy feature wall and space for a large dining table. The living room features coffered ceilings, floor-to-ceiling windows, and a stone fireplace with built-in open shelving and custom millwork creating a warm and inviting atmosphere. New (2025) sliding patio doors off the living room provide direct access to the sunny new (2025) south-facing low maintenance composite deck. Upstairs, vaulted ceilings and mulitple skylights enhance the bright, airy feel. The primary retreat is a serene escape with ample space for king size furniture, built in closet millwork and a luxurious ensuite featuring a dramatic stone feature wall, transom window, a spacious glass-enclosed multi spray shower with bench, soaker tub and premium finishes. Two well appointed additional rooms, a full bathroom with double vanity and a well equipped laundry room complete the upper floor. The fully developed basement is designed for entertainment and comfort, offering a sit-down bar with built-ins, two beverage fridges, sink and a dishwasher. The wine cellar boasts a stone feature wall, display vestibules and ample wine storage. A large recreation area, additional bedroom and a three-piece bath round off the lower level. In-floor heating, converted to a low-maintenance closed-loop system within the last two years, ensures year-round comfort. From the basement, the remarkable underground passageway leads to a stairway for garage access and directly to the dedicated gym space/media room, a standout bonus feature, ideal for fitness enthusiasts, movie or music lovers seeking privacy and sound isolation. Additional upgrades and features include a new laminate roof installed in 2024, in-floor heating in the primary ensuite, basement, and garage, central air conditioning, site-finished quarter-sawn oak hardwood floors, custom millwork, wainscoting, crown mouldings, extensive tile work, a new dishwasher in 2023, and a new on-demand hot water system and water softener also installed in 2023. The fully fenced and low maintenance, landscaped backyard with two gas hook ups, and high quality turf complete this exceptional offering. Meticulously maintained and extensively upgraded, this one-of-a-kind executive home blends timeless style with unmatched functionality in one of Calgary’s most desirable inner-city communities.