Pant-Glas is a stone-built, 'L' shape plan, gentry house of 2 1/2 storeys set below and away from its farm buildings which include a large 17th century barn.The house has good ashlar stonework to its main facades, but has a number of irreconcilable dating features, namely the stone moulding details, of at least three periods. There are windows, fireplaces and jambs with 16th century broach stops, mid 17th century windows, re-used gothic door-heads and a gothic cellar doorway. It is probable that a 16/17th century, `U' shaped plan, 2-storey structure was rebuilt c.1752, incorporating archaic features to an `L' shape plan.

The CADW list description states that the main branch of the Probert family lived there until the early-17th century and the last Probert died 1680. A further study of documentary sources may help in defining exact dates of reworking of this building.
From the documents and structure it appears to have been a former gentry house with 16/17th century origins of `U' shape plan and later it underwent a mid 18th century reworking becoming an `L' shape plan. Perhaps by 1752 this was a house of the noveau riche, with updated accommodation but retaining archaic detail to validate their historic credentials.

Visited Geoff Ward, 02/11/ 2005.