True to their social position, the Kildares placed great importance on the interior of their new mansion. The main staircase below is one of the most elaborate staircases in Dublin. Unlike many houses from the period, the staircase does not rise directly out of the main hall but from a room adjacent.This staircase now leads to the Seanad chamber. This can be seen in the plan below. Their was also a less important staircase for servants to use.

The Dail chamber (above) is in a lecture theatre installed by the Royal Dublin Society in the 19th Century. The Seanad sits in the old first floor saloon. This room with its bow has an elaborate ceiling design.