A church was built at Carrickbrennan (as Monkstown was then known) before the 8th century, and dedicated to Saint Mochonna, bishop of Inispatrick or Holmpatrick by Skerries.

The grange of Carrickbrennan, otherwise Monkstown, was granted by the King to the Cistercian monks of Saint Mary's Abbey, Dublin, in 1200.

[1] In 1539, King Henry VIII awarded the Monkstown lands to Sir John Travers, Master of the Ordnance in Ireland.

Walter and family received a command to vacate Monkstown in 1653 by the Cromwellian Commissioners, and transplanted to Killyan, County Galway.

[citation needed] Until about 1800, Monkstown was a rural area of open countryside, dotted here and there with large houses owned by the merchants of Dublin.

The coastline was ragged and rocky, with a harbour stretching over 100 yards inland at the mouth of the aforementioned rivers, adjacent to the area now occupied by the West Pier.

In a horrific storm, two sailing ships, the Rochdale and the Prince of Wales were blown onto the rocks, one at Seapoint and the other at Blackrock.

Firstly, it changed the topology of the coast, and secondly, it led to Monkstown becoming a commuter suburb of the city of Dublin.

The maps of 1870 show this phase completed, but the rest of Monkstown consists of mansions surrounded by extensive gardens.

The Hynes Diaries recount such details as the coming of gas lighting, the postal and travel facilities, church affairs, and lots of local gossip.

Monkstown Castle, which was probably built in the 12th or 13th century, was erected by the monks of the abbey of the Virgin Mary, near Dublin.

Monkstown is also noted for its coastline, which is home to a number of historical buildings of the Victorian, Georgian and Edwardian periods.

[citation needed] One of the most notable buildings of the Salthill and Monkstown area is a Martello Tower, located at Seapoint beach.

Farm Utd Football Club was formed in 1935, and uses part of the Monkstown Community Centre as its dressing rooms.

[citation needed] Christian Brother's College is based on the old estate of Charles Haliday at Monkstown Park.