Finding an Architect in Ireland: A Homeowner's Guide

Whether you're adding an extension or planning a self-build, the right architect makes all the difference. Here's everything you need to know. When do you need an architect? - Home extensions over 40m² - Self-build new homes - Change of use or listed building work - Complex planning applications - Projects requiring engineer sign-off For smaller extensions under 40m², an architectural technician may suffice at lower cost. What does an architect do? - Measured survey and feasibility assessment - Design and planning drawings - Planning application submission and management - Tender documents for contractors - On-site inspections during build - Completion certificate for the bank Costs in 2026: - Planning drawings only: €1,500 – €4,000 - Full service for extensions: 8% – 12% of build cost - Full service for new builds: 10% – 15% of build cost - Hourly rate: €100 – €180/hour For a €120,000 extension, expect architect fees of €9,600 – €14,400 for a full service. Tips for choosing an architect: 1. Review their portfolio — do they have experience with similar projects? 2. Check RIAI registration (Royal Institute of the Architects of Ireland) 3. Get 2-3 fee proposals before deciding 4. Ask who will actually be managing your project 5. Agree a clear scope of work in writing Source: RIAI published fee guidance. Rates vary by practice size and project complexity.