Another extension was added on the west side into Foster Place, designed in 1787 by architect Robert Parke; while matching Gandon's portico, he tried a different solution, linking the other portico to the main Pearce one by a set of Ionic pillars. The result proved unattractive. When the Bank of Ireland took over the building, it created an architectural unity by replacing this set of Ionic columns by a curved wall similar to Gandon's east wall. Ionic columns were then added to both curved walls, giving the extensions an architectural and visual unity that had been lacking and producing the building's ultimate exterior.