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Plas Mawr is a substantial stone-built house in Conwy, Wales, constructed in the late sixteenth century and standing as one of the finest surviving examples of an Elizabethan gentry residence in Britain. Built by Robert Wynn between 1576 and 1585, the house exemplifies the architectural ambitions of a prosperous Welsh merchant and landowner during the Tudor period. The building retains its characteristic features of that era, including decorative plasterwork, mullioned windows, and a courtyard plan, and has been preserved largely intact with minimal external alteration. Now owned by Cadw, it represents an important record of domestic life and wealth among the Welsh gentry in the post-medieval period.
Plas Mawr is a scheduled monument protected by Cadw under reference CN083. View the official record →
Plas Mawr is a substantial stone-built house in Conwy, Wales, constructed in the late sixteenth century and standing as one of the finest surviving examples of an Elizabethan gentry residence in Britain. It is designated a Scheduled Ancient Monument by Cadw under reference CN083.
Plas Mawr dates from the post medieval/modern period, and is classified as a house (domestic). It is one of over 32,000 scheduled monuments protected across the UK.
Plas Mawr is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is CN083.
Several scheduled monuments lie within 10 km, including Bryn Castell (5.7 km), Maen Penddu (5.8 km), Caer Bach (5.9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Plas Mawr's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Plas Mawr stands on Caradoc Rocks (Undifferentiated), bedrock that formed in the Caradocian. The rock here is mudstone, siltstone and sandstone.