Architecture of Roscommon See Also 1903churchesCo. RoscommonO'Callaghan & WebbP.J. KilgallenRoscommonWalter G. Doolin (1850-1902) Random Building 1777 – Old Gaol, Roscommon, Co. Roscommon 1903 – Church of the Sacred Heart, Roscommon Home / Buildings / Buildings of Ireland / Architecture of Connacht / Architecture of Roscommon / 1903 – Church of the Sacred Heart, Roscommon Architect: Walter G. Doolin & P.J. Kilgallen / O’Callaghan & Webb Main body of church constructed between 1897 and 1903 by Walter G. Doolin & P.J. Kilgallen. The tower and spire was added around 1916 by O’Callaghan & Webb. Share this:TwitterFacebookMastodonRedditPrint Related! Related!