Portumna Castle

Portumna Castle is a Renaissance fortress in Portumna that stands at the entry point of the River Shannon into Lough Derg. The structure has three stories above a basement level with symmetrical rooms and four square corner towers with classical proportions.

The fortress was built between 1610 and 1617 by an Irish nobleman as a display of regional power and authority. It suffered damage over the centuries but was later restored to preserve its original character and appearance.

The castle displays Renaissance design choices in its ornate entrance doorway and classical gate structures. These architectural touches remain visible today and reflect the wealth and tastes of its original owner.

The site is best explored on foot with clear paths through the gardens and around the building. The warmest months offer the best visiting conditions when the grounds are fully open and the formal gardens are in their best state.

A major fire significantly damaged the building, but the distinctive chimneys were later rebuilt and still define its roofline today. This reconstruction effort shows how important these tall structures were to the fortress's identity and appearance.

Location: Portumna

Inception: 1617

Operator: Office of Public Works

Website: https://heritageireland.ie/visit/places-to-visit/portumna-castle-and-gardens

GPS coordinates: 53.08668,-8.22073

Latest update: December 8, 2025 19:49