1820s – Cornacassa House, Monaghan, Co. Monaghan
A dignified smaller classical house with a lower service wing.
1820s – Jenkinstown House, Castlecomer, Co. Kilkenny
Architect: William Robertson / Charles Frederick Anderson
Illustrated as designed and built by William Robertson,
1820s – Killua Castle, Clonmellon, Co. Westmeath
Architect: Thomas Cooley / James Shiel
The beginnings of the present structure is in 1780 when Sir Benjamin Chapman,
1820s – Masonbrook, Loughrea, Co. Galway
Masonbrook was so-named as it was originally the seat of the Mason family.
1820s – Shankill Castle, Paulstown, Co. Kilkenny
Shankill Castle started as a Butler tower-house near the ruins of an old church.
1820s – The Grange, Baldoyle, Co. Dublin
A smaller country house in Baldoyle, formerly Beau Park,
1821 – Langford Lodge, Crumlin, Co. Antrim
Architect: James McBlane
Fine three storey residence with multiple bowed bays overlooking Lough Neagh.
1823 – Mitchelstown Castle, Mitchelstown, Co. Cork
Architect: James Pain & George Pain
In 1823,
1823 – Ormeau House, Co. Down
Architect: William Vitruvius Morrison
A long rambling Tudor mansion designed for the 2nd Marquess of Donegall on the then outskirts of Belfast,
1825 – Convamore House, Ballyhooly, Co. Cork
Architect: James Pain
Large classical house built on an elevated site overlooking the River Blackwater,
