Monarch Properties is best known as the company that built many of the country's big shopping centres. It built The Square in Tallaght, west Dublin, in the late 1980s at a time when few could have predicted the property boom. The company built shopping centres in Dundalk, Drogheda, Navan and Athlone. It also developed the Janelle Shopping Centre in Finglas, the Nutgrove shopping centre in Rathfarnham and Bloomfield in Dun Laoghaire, Co Dublin. In recent years the company developed the Castleknock Golf Club in Dublin 15.