Experience the enduring quality of 1960s architecture in this treehouse retreat. Perched on a private, wooded lot with peek-a-boo views of Lake Sammamish, this home seamlessly blends vintage character with essential modern upgrades, including a newer heating and cooling system and energy-efficient windows throughout. The main level showcases dramatic vaulted ceilings and exposed timber beams, creating an airy, expansive feel. An updated kitchen with stainless steel appliances flows into a bright living space anchored by a beautiful period-correct wood fireplace. Step out onto the oversized deck to enjoy the tranquil forest setting and lake views, perfect for entertaining. The lower level offers incredible flexibility with a fully self-contained, turn-key suite that has a proven rental history. This space includes a private entrance and dedicated parking, yet remains connected to the main house for easy use as a single-family residence or multi-generational living. An oversized two-car garage provides a deep footprint with ample room for a dedicated workshop or hobby area at the rear. Located in an established neighborhood defined by pride of ownership, you are just minutes from the historic downtown core, I-90, and the award-winning schools of the highly-coveted Issaquah School District. From world-class hiking trails to winter skiing, this home is the ultimate hub for an active Northwest lifestyle in one of the region's most sought-after communities.