1900 – Presbyterian Church, Whiteabbey, Co. Antrim Architect: Nicholas Fitzsimons Originally built in 1866, but destroyed by fire in 1899 which left only the side walls standing.
1903 – The Smiley Cottage Hospital, Larne, Co. Antrim Architect: Nicholas Fitzsimons Constructed on a site provided by Sir Hugh .H. Smiley, who also paid for the construction of the building.