Exceptional craftsmanship and thoughtfully curated designer upgrades define this stunning Old Lake Highlands home. Built in 2022 by Blanchard Custom Homes & meticulously maintained, it offers the style, efficiency & ease of newer construction with elevated finishes throughout. A welcoming formal entry opens to a private study with French doors highlighted with paneling which then leads to the heart of the home. Rich hardwood floors extend throughout the main level, where soaring ceilings & expansive windows fill the open-concept living spaces with natural light. The chef's kitchen features an oversized island with seating, commercial-style built-in refrigerator, double ovens, gas cooktop, abundant custom cabinetry and designer lighting. Overlooking the dining area and family room, it's designed for effortless entertaining & everyday living. Anchored by a gas fireplace with a marble surround, the family room overlooks the covered patio & beautiful backyard, where a retractable awning creates an inviting outdoor living space. Thoughtful functionality continues with a mudroom featuring built-in storage, a tucked-away powder bath and a private first-floor guest suite with an en-suite bath. Upstairs, a spacious game room complements the serene primary suite, complete with a sitting area and luxurious marble bath featuring dual vanities, soaking tub, oversized shower, private water closet and an impressive walk-in closet. Two secondary bedrooms share a bath with dual sinks, while the oversized laundry room offers a utility sink, folding counter and additional storage. Since purchasing the home, the owners have enhanced nearly every space with Visual Comfort lighting, electric shades throughout, a retractable backyard awning and numerous designer upgrades that elevate the home. Offering a rare combination of timeless design, modern convenience and turnkey condition, 559 Coolair is an exceptional opportunity in one of East Dallas' most sought-after neighborhoods.