Tyrrelstown

Tyrrelstown (Irish: Baile an Tirialaigh) is a townland in the civil parish of Mulhuddart, located 13 km northwest of the city of Dublin in Ireland and often considered as part of the greater Blanchardstown area. It is the site of a planned suburban development from the early 2000s. The local authority for the area, which forms part of the Dublin 15 postal district, is Fingal County Council.

Tyrrelstown (often also spelt as Tyrellstown or Tyrrellstown) derives its name from that of the Tyrrell family, which was granted the lands in the parishes of Clonsilla and Mulhuddart in 1178 by Hugh de Lacy, Lord of Meath. Historically Tyrrelstown is part of the barony of Castleknock, which had its focal point at Castleknock Castle; much of the area's history is intertwined with that of Cruiserath, Castleknock, Mulhuddart and other adjacent places. To the south there is Tyrrelstown House, a protected structure dating back to 1720. About 1580 Tyrrelstown was granted to the Bellings family, whose most prominent member was Richard Bellings, one of the leaders of Confederate Ireland.

Tyrrelstown is located south of Hollystown Golf Course, north of Mulhuddart, west of Cruiserath and lies between the N3 and the M2.

Located nearby is Damastown Industrial Estate, one of Dublin's largest industrial estates, which includes a major IBM campus, employing over 4,000 people. In Cruiserath, also nearby, there are premises for the pharmaceutical corporation Bristol-Myers Squibb, while beyond is Blanchardstown Corporate Park which features offices belonging to PayPal, Ask.Com, and Welocalize, a multinational software localization company.

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