1837 – Tandragee Castle, Tandragee, Co. Armagh Architect: Isaac Farrell Country houses become hotels and guest houses, this one became a crisp factory. Built around 1837 for the 6th Duke of Manchester as the family’s Irish home.The castle has a strong tower at one end,
1839 – Permanent TSB, Abbey Street, Dublin Architect: Isaac Farrell The original interior long vanished, this fine small bank originally built for the Trustee Savings Bank is still in use today.
1841 – Presbyterian Church, Adelaide Road, Dublin Architect: Isaac Farrell Originally designed by Isaac Farrell, the interior had a galleried interior for a congregation of 800.
1843 – Former Methodist Centenary Church, St. Stephen’s Green, Dublin Architect: Isaac Farrell Previously the congregation was based in Whitefriar St., but it was leased. After applying for a renewal,
1852 – Methodist Church, Ranelagh, Dublin Architect: Isaac Farrell / J.J. Phillips Former Methodist church and hall sited on Charleston Road in Ranelagh and now an office development known as Trinity Hall.
1860 – Aughentaine Castle, Fivemiletown, Co. Tyrone Architect: Isaac Farrell Aughentaine Castle consisted of a two-storey main block and a lower two-storey wing, with two tall Italianate campaniles of equal height,