I found out about it by listening to the podcast What do Builidngs Do All Day? Episode 6 Cosmoform an Architectural Podcast by Emmett Scanlon in which he was talking to the creators of the Zine Cormac Murray and Eamonn Hall.
The Building is Irelands’ Met Office HQ. Finished in 1979 it brought together the different Meteorological departments under one roof for the first time. The most striking thing about it is that it’s a truncated pyramid. Like a modern ziggurat it sits along a leafy brick Victorian suburb in Dublin.