Welcome to this dramatic expanded mid-century contemporary in highly sought-after Glen Echo Heights with seasonal river views and gorgeous sunsets. Originally built in 1951, this home has been extensively renovated and expanded, blending light-filled interior spaces and dramatic modern design with the natural exterior landscape and an enchanting water feature. This distinctive residence offers a welcoming entry foyer with a decorative display nook and a walk-in closet; a thoughtfully designed chefs kitchen with granite counters, maple cabinetry, and updated appliances; an elegant dining room / great room with a wall of windows; and an inviting living room with bamboo flooring, a slate fireplace flanked by bookshelves and windows offering picturesque backyard views of the stone-scaped water feature. There are two generous bedrooms and one and a half baths on the main level. The main level is complete with a mudroom off the kitchen, a captivating library with a wall of built-ins and an office with two closets and breathtaking backyard views. Wake up feeling like you have been transported to a treehouse in the impeccably appointed upstairs primary bedroom suite with a large sitting room, substantial bedroom, huge windows overlooking the leafy backyard, large walk-in closet, and skylit bathroom. The walkout lower-level features large windows with great natural light and includes a recreation room with a stone fireplace and built-ins, a full bath, two sizeable bedrooms, a storage room and a bonus / craft room. The beautiful, wooded yard provides a serene and private setting with its stone accents, enchanting water feature (including a waterfall, stream and two small ponds), mature plantings, flagstone pathways and a synthetic wood deck. There are two large exterior storage rooms, an extensive driveway with ample parking and a covered stone mudroom entrance. Unparalleled quality craftsmanship and exquisite finishes, all on a picturesque nearly a half acre lot (20,502 square foot) with fabulous views, breathtaking sunsets, and the sparkle of the Potomac in season. Steps to the Mohican Pool and Glen Echo Neighborhood Park! Great location close to the Chesapeake and Ohio Canal Towpath, Glen Echo Park, and Downtown Bethesda! Easy access to Macarthur Boulevard, Massachusetts Avenue, Clara Barton Parkway, the GW Parkway, Chain Bridge, I-495, and just minutes to DC.