Article: Republic of Ireland
Section: Architecture

Question: Who contributed the  Gothic cathedrals such as St. Patrick's?

Ireland has a wealth of structures, surviving in various states of preservation, from the Neolithic period, such as "Brú na Bóinne", Poulnabrone dolmen, Castlestrange stone, Turoe stone, and Drombeg stone circle.
As the Romans never conquered Ireland, architecture of Greco-Roman origin is extremely rare.
The country instead had an extended period of Iron Age architecture.
The Irish round tower originated during the Early Medieval period.
Christianity introduced simple monastic houses, such as Clonmacnoise, Skellig Michael and Scattery Island.
A stylistic similarity has been remarked between these double monasteries and those of the Copts of Egypt.
Gaelic kings and aristocrats occupied ringforts or "crannógs".
Church reforms during the 12th century via the Cistercians stimulated continental influence, with the Romanesque styled Mellifont, Boyle and Tintern abbeys.
Gaelic settlement had been limited to the Monastic proto-towns, such as Kells, where the current street pattern preserves the original circular settlement outline to some extent.
Significant urban settlements only developed following the period of Viking invasions.
The major Hiberno-Norse Longphorts were located on the coast, but with minor inland fluvial settlements, such as the eponymous Longford.
Castles were built by the Normans during the late 12th century, such as Dublin Castle and Kilkenny Castle, and the concept of the planned walled trading town was introduced, which gained legal status and several rights by grant of a Charter under Feudalism.
These charters specifically governed the design of these towns.
Two significant waves of planned town formation followed, the first being the 16th and 17th century plantation towns, which were used as a mechanism for the Tudor English kings to suppress local insurgency, followed by 18th century landlord towns.
Surviving Norman founded planned towns include Drogheda and Youghal; plantation towns include Portlaoise and Portarlington; well-preserved 18th century planned towns include Westport and Ballinasloe.
These episodes of planned settlement account for the majority of present day towns throughout the country.
Gothic cathedrals, such as St Patrick's, were also introduced by the Normans.
Franciscans were dominant in directing the abbeys by the Late Middle Ages, while elegant tower houses, such as Bunratty Castle, were built by the Gaelic and Norman aristocracy.
Many religious buildings were ruined with the Dissolution of the Monasteries.
Following the Restoration, palladianism and rococo, particularly country houses, swept through Ireland under the initiative of Edward Lovett Pearce, with the Houses of Parliament being the most significant.
With the erection of buildings such as The Custom House, Four Courts, General Post Office and King's Inns, the neoclassical and Georgian styles flourished, especially in Dublin.
Georgian townhouses produced streets of singular distinction, particularly in Dublin, Limerick and Cork.
Following Catholic Emancipation, cathedrals and churches influenced by the French Gothic Revival emerged, such as St Colman's and St Finbarre's.
Ireland has long been associated with thatched roof cottages, though these are nowadays considered quaint.
Beginning with the American designed art deco church at Turner's Cross in 1927, Irish architecture followed the international trend towards modern and sleek building styles since the 20th century.
Recent developments include the regeneration of Ballymun and an urban extension of Dublin at Adamstown.
Since the establishment of the Dublin Docklands Development Authority in 1997, the Dublin Docklands area underwent large-scale redevelopment, which included the construction of the Convention Centre Dublin and Grand Canal Theatre.
Completed in 2008, the Elysian tower in Cork is the tallest storeyed building in Ireland, at a height of , surpassing Cork County Hall.
The Royal Institute of the Architects of Ireland regulates the practice of architecture in the state.