21 has intricate rococo plasterwork and a particularly heavy staircase. The detail lightens as one progresses along the terrace, although No. 22, the first to be built, is an exception. Here the main stair hall and the principal reception rooms have much lighter detailing, in the neo-classical, Adam style. In the midst of this lighter decoration, there are examples of heavier detail, such as the intricate Corinthian cornice in the stairwell and the third floor room with coved ceilings and dramatic rococo plasterwork. Monck House was "modernised" in the late 18th century or the beginning of the 19th century. Others Another house called Mornington House in the Multyfarnham area of County Westmeath has no connection to the Earls of Mornington or their Dublin townhouse. It is in the townland of Monintown, a name which became corrupted. References http://www.merrionhotel.com/merrion_profile.php http://www.historyhome.co.uk/pms/wellingt.htm Georgian architecture in Ireland Houses in the Republic of Ireland Hotels in Dublin (city) Buildings and structures in Dublin (city)