History
C16 farmhouse and one-time public house, with attached agricultural range. The house is first named in a deed of 1625 as 'Tythyn Ystymllan' and was alongside the original Medieval drover's route from Bwlch y Rhiwgr to Bontddu and Dolgellau. Formed part of the extensive Cors y Gedol estate and first recorded in rentals of 1713.
The house is one of a number of sub medieval houses in the area, dating from C16, a regional house type of 2 units with end chimneys and cross passage plan, originally with hall to one side of the passage and parlour and service room to the other.
There are many records of the alterations and additions to the house and buildings as well as the ancillary buildings, (see M. Griffiths). In 1753 a new barn was built, in 1756 the door and windows to the house were replaced and in 1758 a new floor to the parlour was laid, new stairs built and repairs made to the 'celer'. In 1762 there were expenses recorded for paving and flagging the malthouse. In 1777 further rebuilding and repairs were recorded, amounting to £79.6s.8½d and the first Alehouse recognisance was recorded in the Merioneth Quarter Sessions - William Price the Innkeeper. The inn was not included in the 1759-1826 list of inns (DRO).
In 1792 there was the first recorded rental as 'Llanddwa Inn' and in 1801 William Jones replaced William Price as Innkeeper. He died in 1807 and his daughter Sarah took over the tenancy until 1833 when she was in turn succeeded by her son Robert. In 1809-10 the cowhouse was rebuilt at a cost of £30.10s.0d and in 1810-11 there were further repairs made to the Inn. In the tithe appointment of the parish, 1841, it is recorded as a Public House, and a smallholding of just over 26 acres; owned by the Honorable Edward Mostyn Lloyd Mostyn and occupied by Robert Jones.
In 1858 part of Cors y Gedol estate was sold by the Mostyn family - Lot 69 was field 6, Llanddwye Farm. By 1860 the estate has passed into the ownership of Mr Cockburn and in 1880 a sale catalogue lists Lot 67 - Inn, the estate then owned by Mr Ansell.
The house ceased to be a Public House in 1903 and in 1908 much of the Cors y Gedol estate was sold by the Ansell family. The Inn was then occupied by Edward Williams and was finally sold for £1000. The sale particulars record the Inn as having: parlour, front kitchen, back kitchen, pantry, wash house and cellar. Four bedrooms, 4 attics, and cellar in the basement. Ancillary buildings: Dairy, coal house, a 4-stall stable, 2-stalled stable with lofts above, 2 pigsties, cowhouse of 4 ties, barn, cartshed and potato house.