Reddy O’Riordan Staehli Architects Reddy O'Riordan Staehli Architects (RORSA) is a Cork-based architectural practice, founded in 1972, with a reputation for design excellence, as evidenced in competition wins, commendations and awards. With considerable experience of a wide range of building types, RORSA have a reputation for innovative design, efficient project management, and cost effectiveness All our projects have one thing in common - they are very important to our clients, to those who will use the buildings, and to the environment in which they are situated. We are very aware of our responsibilities and strive for excellence in every facet of our service.