O'Criostoir & Associates Ltd

Ó Criostóir & Associates is a family‑run architectural practice that traces its roots back to 1975. Based in Dungarvan, County Waterford, the practice blends local knowledge with a forward‑looking approach, ensuring each project is both contextually appropriate and innovative. The studio’s specialities include urban, rural and interior design, space planning, alternative‑energy integration and comprehensive project management. From the initial concept and planning‑permission applications through to detailed construction documentation, Ó Criostóir & Associates guides clients through every regulatory and design hurdle. Their portfolio showcases extensions, new builds and bespoke renovations, each tailored to the client’s vision while adhering to high standards of quality and sustainability. Clients appreciate the firm’s friendly, reliable service and Siubhan’s hands‑on involvement—from regular site visits to responsive communication—making Ó Criostóir & Associates a trusted partner for anyone seeking professional, accessible architectural expertise.