1833 – Original Entrance, Dublin Zoo, Phoenix Park, Dublin Architect: William Deane Butler There have been three turnstile entrances to the Zoo grounds. This, the earliest of them,
1867 – Zoological Society House, Phoenix Park, Dublin Architect: John McCurdy Solid large house with many round headed windows on the first floor. Much overlooked by visitors to the Zoo.
1892 – Roberts House, Dublin Zoo, Phoenix Park, Dublin Architect: L.A. McDonnell The finest building in the zoo, this little gem is still in use and maintained in good condition.
1899 – Haughton House, Phoenix Park, Dublin Architect: L.A. McDonnell The building of 1898 was surrounded for many years by poor quality extensions, only the architectural detail around the roof and eaves could be discerned.
1999 – Dublin Zoo Entrance, Phoenix Park, Dublin Architect: Scott Tallon Walker This is the current entrance building situated just down the road from the two previous entrances to the zoo.