Also of the style, but a little more assertive, is Lifford Courthouse. Designed by the architect Michael Priestly and completed in 1754 (he also designed Port Hall House near Lifford and Prehen House near Derry), this public building makes much of its oversized windows. Their alternating stepped surround is of a form popularised during the period by the London architect James Gibbs and reflects a developing professional class of architects and designers. At the same time Priestly was drawing up plans for the Earl of Abercorn to reorganise Strabane and build 300 houses.