Llanerchaeron in Wales. On the first floor of the courtyard there is this servants' bedroom. Llanerchaeron is a small 18th century Welsh gentry estate which has survived virtually unaltered. The house was built by John Nash in 1795. Consisting of the house, servant's quarters, stables, farm buildings and walled garden, Llanerchaeron is a traditional rural estate that has remained in the same family for ten generations.