Firhouse is an outer suburb of Dublin, in the county of South Dublin, in the south of the traditional County Dublin in Ireland. It developed from a rural village by the River Dodder, with a second settlement, Upper Fir-house, nearby. It is just outside the M50 orbital motorway, and in the postal district of Dublin 24. It is adjacent to Knocklyon, Ballycullen, and Tallaght. In the historic divisions of local administration, Firhouse is in the civil parish of Tallaght and the barony of Uppercross.
The old village area of Firhouse
Footbridge at Firhouse over the River Dodder
Firhouse Weir, also known as Balrothery Weir, on the River Dodder
Housing near Firhouse Community Centre and Sports Complex
South Dublin is a county in Ireland, within the province of Leinster and the Eastern and Midland Region. It is one of three successor counties to County Dublin, which was disestablished for administrative purposes in 1994. South Dublin County Council is the local authority for the county. The county contains both dense suburbs of Dublin and stretches of unpopulated mountains. In 2022 it had a population of 301,705, making it the fourth most populous county in the state.
Signposted boundary between Dublin City and South Dublin County on the Naas Road in Inchicore