Hen Dy, the upper part of Llannerch y Cawr Longhouse, comfortably sleeps six people. This Grade II* listed building dates back to the 16th century and retains much of its original charm. Restored in 1999, the property carefully preserves its traditional features while serving as two self-catered, semi-detached accommodations—Hen Dy (Upper) and Y Beudy (Lower).

Nestled near the Dôl y Mynach Reservoir in the scenic Claerwen Valley, Llannerch y Cawr Longhouse offers easy access to the main Claerwen Valley road. The property sits just 7 miles from Rhayader, approximately 4.5 miles from the Elan Valley Visitor Centre, and 6 miles from the charming Penbont Tearooms.

Historically, Hen Dy served as the residential section of the Longhouse, and today, it proudly showcases its heritage. Guests can enjoy a traditional inglenook open fireplace, authentic flagstone flooring, exposed wooden beams, and a distinctive stone staircase that winds unevenly upward.

However, due to the uneven flooring and twisting staircase, this property is not recommended for those with mobility concerns or for young children. Additionally, during July and August, the bats can be quite active, creating scratching noises and frequently flying in and out.

For those seeking a true escape, Hen Dy offers an off-grid experience. A generator provides power, but there is no phone signal or WIFI, allowing guests to fully disconnect and immerse themselves in the tranquillity of the enchanting Elan Valley.