Welcome to 3909 Treeline Dr, a custom stone bungalow at the end of a quiet mature cul-de-sac on the shores of Lake Couchiching. Offering 3,400 sq.ft. of finished living space, 100 ft. of southwest waterfront, level lawn, and a private dock, this property delivers breathtaking sunsets, rare long lake views, and crystal-clear sand-bottom water. Step inside to smooth ceilings, rich hardwood flooring, and light-filled open-concept living. The renovated chef's kitchen features quartz countertops with a waterfall edge, custom white shaker cabinetry, induction cooktop, coffee bar, and lake views from the sink. Host formal dinners by the dark brick accent fireplace or relax in the 430 sq.ft. sunroom featuring a cozy gas fireplace and wall-to-wall windows. Step out onto the deck leading down to your flat backyard, an ideal setting for all outdoor activities. The main-floor primary suite serves as a serene haven with a private covered balcony overlooking the lake, and an ensuite complete with a glass bench shower and jacuzzi tub. The walk-out lower level offers a complete living suite with a large rec room, wood stove, secondary kitchen, dining area, gym space, full bathroom, and bedroom. Walk directly out onto an expansive interlock stone patio framed by landscaped gardens. Boaters love Lake Couchiching from the beautiful water to exploring, Chief's Island & Port of Orillia. The boating continues with access into the Trent-Severn Waterway and access to Lake Simcoe. This home is steps away from a community-only park and includes an oversized 2-car garage with ceiling height for a potential car lift. The pride of ownership shines from the moment you arrive. Thoughtfully landscaped and beautifully maintained, this home offers stunning curb appeal from every angle-complete with full front-to-back irrigation and professional full-property uplighting. Located 10 mins from downtown Orillia and 20 mins to Muskoka Wharf on Lake Muskoka. No updates needed, just turn the key and enjoy!