Llanerchydol Hall, Welshpool, was first built in 1776. There is no visible evidence for the form of this house, however, because following a fire, the house was rebuilt or remodelled in 1820 for David Pugh. In c.1880 the house was extended, and the service wing may have been added at this time.

Built in Picturesque early Gothic Revival style, the main fronts are ashlar faced, with brick to the rear and in the south-west wing; it has slate roofs, recessed behind parapets. There is a 3 storey main block, 2 storey rear, and a turreted stable block with clock tower.

The house remained in the Pugh family until 1912. It has now been subdivided to form two dwellings.