Bracklyn House is a fine late eighteenth-century country house set in extensive grounds to the south of Delvin. The present house was built around 1790 by a branch of the Fetherston-Haugh family on land acquired from the Pakenham family of Tullynally Castle.

The house is a good early example of the Neoclassical style in Westmeath. It is a five-bay, two-storey building over a basement, with a particularly handsome Doric porch added around 1855. Further alterations were made in the early twentieth century, when the single-storey bow-ended wings were added.

The history of Bracklyn, however, goes back considerably further. The present house occupies the site of a fifteenth-century tower house and the estate has much earlier Nugent connections. Records from the sixteenth and seventeenth centuries refer to a castle at Bracklin, and the Down Survey of the 1650s describes the castle as being in good repair, with an orchard and garden. It is possible that some of the fabric of the earlier tower house was reused in the later buildings on the estate, although this has not been established with certainty.

The Fetherston-Haughs became an important landholding family in Westmeath and Bracklyn was one of several estates held by the family in the area. James Fetherstonhaugh was resident at Bracklyn in 1814 and his son Thomas James was living there in 1837. By the beginning of the twentieth century Captain Cecil Howard Digby Fetherstonhaugh and his family were living at the house. In 1906 the estate included approximately 2,300 acres of land.

The estate contains a number of other interesting buildings, including an elaborate gate lodge dating from around 1821 and a striking mausoleum erected in 1836. The mausoleum is built of heavily rusticated limestone and has a deliberately picturesque appearance. A later Neoclassical tomb, bearing the Fetherston-Haugh coat of arms, stands beside it. Together with the house and its extensive outbuildings, these buildings form an important group of historic structures.

Bracklyn was historically a very substantial estate. At various times the demesne included gardens, woodland, farmland and extensive outbuildings. In the twentieth century the estate was also associated with farming and horse breeding. The house and estate have since passed through several hands and the house has undergone restoration.

Bracklyn House remains a private residence and the house and grounds are not open to the public.