Complex sentence: It is situated on a steep hillside high above the village of Tongwynlais, to the north of Cardiff in Wales, and is a Grade I listed building as of 28th January 1963.
Split into simpler sentences: It is situated on a hillside near the village of Tongwynlais, in the north of Cardiff in Wales. William Burges and the High Victorian Dream page 281 It is a Grade I listed building as of 28 January 1963.