Gloddaeth Hall originated as a large country house in Llandudno, Caernarfonshire (now Conwy), Wales.

The core of the building is a 16th-century hall and two storey solar block, built of stone rubble with freestone dressings.

[1] In the 19th century, further additions were made to the building by William Nesfield,[1] and John Douglas, who designed a new west wing for Augusta, Lady Mostyn in 1889.

[4] The hall now forms part of St David's College, a mixed sex independent boarding and day school for pupils aged 9–19.

[1] Tennis player Angela Buxton attended school at Gloddaeth Hall.