A truly exceptional architectural offering, this mid-century modern residence is privately nestled on a quiet cul-de-sac in sought-after Radnor Township, surrounded by 1.5 acres of beautifully established grounds. Offering over 4,700 square feet, 4+ bedrooms, and 4.5 bathrooms, the home blends distinctive architectural character, a remarkable connection to nature, and a commitment to energy efficiency and sustainable living. Mature trees, gardens, and winding woodland paths create a secluded, park-like setting, yet Dittmar Park, Wayne Elementary School, Mill Dam Swim Club, Wayne Library, the train, and downtown Waynes shops and restaurants are all within walking distance. The welcoming entry opens to an intimate fireside sitting room with custom built-ins, paned glass, hardwood floors, and high ceilings. The formal dining room features a dramatic wall of windows overlooking the greenery. A few steps down, the expansive living room showcases custom built-ins, a fireplace, and an impressive wall and a half of glass with doors opening to a flagstone terrace, seamlessly connecting indoor and outdoor living. The gourmet kitchen combines timeless style and functionality, featuring a fireplace, counter seating for four, a separate eat-in area, gas range, stainless steel appliances, wood cabinetry, and distinctive PaperStone and granite countertops. Natural cork flooring provides warmth, sound dampening, and insulation. Four points of outdoor access connect the kitchen to the mudroom, laundry area, driveway, garage, garden path, and flagstone terraces, offering inviting spaces for grilling, al fresco dining, and entertaining. The main-level primary suite provides a peaceful retreat with a walk-in closet and en-suite bath featuring a soaking tub, expansive walk-in shower for two, and double vanity. A nearby powder room, coat and linen closets, and flexible office or nursery add convenience and versatility. Upstairs, an open landing with bookshelves leads to three generously sized bedrooms. One offers an en-suite bath, while another includes an attached study and shares a full bathroom with a separate tub and shower. Ample storage and attic access complete this level. A dramatic floating staircase descends from the kitchen to a ground-level gym with expansive windows overlooking the landscape and radiant floor heating. A full bathroom and exterior yard entrance enhance its versatility. The finished lower level offers additional space for recreation, relaxation, or hobbies, with access from both the gym and first-floor sitting room. Dedicated storage with shelving, a freezer, and a second refrigerator complements the home's abundant closets and basement storage. Designed for year-round comfort and reduced energy consumption, the home features passive solar design, geothermal heating and cooling, solar panels, foam insulation, and high-efficiency fireplaces. A new roof adds further peace of mind. Annual heating, cooling, and electricity costs are approximately $4,500, including gasa remarkable benefit for a home of this size. Combining timeless mid-century modern architecture, flexible living spaces, and exceptional outdoor connections, this distinctive residence is ideal for both everyday living and gracious entertaining. Its private 1.5-acre setting, walkable Wayne location, proximity to the train and major highways including I-476, Route 202, I-76, and Route 422, and access to some of the regions most prestigious public and private schools make this a rare opportunity to enjoy architectural distinction, privacy, convenience, and energy-conscious living in one of the Main Lines most desirable locations.