In the second decade of the 19th century, a new Church of Ireland church dedicated to the Holy Trinity was built in Castlerea, County Roscommon with the aid of a grant from the Board of First Fruits. Replacing an older building which had hitherto been used for services, the second Holy Trinity opened for services in 1819 when the local doctor, Thomas Wills Wilde (grandfather of Oscar Wilde) acted as the Church Warden. Later Douglas Hyde, whose father was a clergyman, would be baptised here. The building is of standard design for the period, of cruciform shape with a two-bay nave and a three-storey entrance tower at the west end. It closed for worship in late December 1997 and then stood empty for many years before being rescued by a local voluntary group who restored the premises for use as a multi-purpose arts and community centre: the group is currently running a gofundme page to ensure the property can continue to serve this purpose. It might also like to consider raising money to landscape the immediate surrounds, because at the moment this rather already somewhat bleak, cement-rendered building sits in an unappetising ocean of tarmacadam and gravel.
The tarmac and the small garage do make the building look depressing, I would be inclined to say a coat of paint on the render wouldn’t go amiss either.