Roxborough was historically part of the civil parish of Caheravally and the Barony of Clanwilliam and comprised 526 acres, two roods and five perches.

Roxborough is designated as an electoral division and contains the following townlands: Ashfort, Ballyclough, Ballysheedy West, Bohereen, Cahervally, Derrybeg, Friarstown, Greenhills, Lemonfield, Lickadoon, Lissanalta, Oatlands, Parkroe, Raheen, Rathuard, Rootiagh, Routagh, Roxborough and Toberyquin.

[3] During the Cromwellian Plantation, all of the Roche lands, including Roxborough, were confiscated and given to the Hollow Sword Blade Company, which, in spite of its name, was a bank.

[3] A Colonel Thomas Vereker of Cork purchased the land from the Hollow Sword Blade Company during the reign of Queen Anne and constructed Roxborough House.

According to Spellissy, "he built his mansion in a park laid out with canals, terraces and hedges, in the stiff Dutch fashion."

[6] Due to the extensive civil unrest of the period following the Acts of Union in 1800 and the Napoleonic Wars, many police barracks were constructed in the region and one was built at Power's Cross in Roxborough in the 1830s.

This has been reinforced by the misuse of Roxborough on directional roadsigns on a section of the N18 from the Limerick Tunnel to the Junction 1 exit.