Welcome to 834–836 Killarney Drive, a brick side-by-side duplex in Castle Shannon offering space, updates, and flexibility under one roof. Each unit features 3 bedrooms, a living room, dining room, kitchen, full bath, basement, integral garage, 90% efficient furnace, and central air. Large front picture windows fill both main levels with natural light. The right-side unit has been refreshed with an updated kitchen and flooring, creating a bright, inviting interior. The left-side unit offers the same practical floor plan with well-maintained rooms and neutral finishes—a comfortable setting to enjoy as-is or personalize over time. Both lower levels include laundry, storage, and a classic Pittsburgh potty. A newer roof, retaining walls, sidewalks, and an oversized driveway provide generous off-street parking. Located in the Keystone Oaks School District near the Castle Shannon T station, this duplex offers flexibility for owner occupancy or a two-unit investment.