The street is lined mostly with red brick Victorian houses and London Plane trees.

[2] The property on both sides of the road was developed into residential houses from 1835 until around the turn of the 20th century by the Pembroke estate.

The street is not to be confused with Northumberland Square which was located on the North side of the city but has since disappeared.

It was formerly constructed in 1861 as a Church of Ireland national school but was left largely vacant from its closure in 1969 until its refurbishment and opening as a hotel in 1997.

[9][10][11] According to The Irish Times, at 4:45PM on Day One, "The elderly, unarmed Veteran Defence Force march into a rebel ambush on Northumberland Road".