At Walsh + Walsh Architects, sustainability isn’t a trend — it’s a principle that underpins how we design. Having delivered projects like the Hallinan House, winner of Ireland’s National NZEB Design Competition, we’ve seen first-hand what it takes to design a truly energy-efficient home that performs — not just on paper, but in everyday life.

Understanding Energy Efficiency in the Irish Context

Energy-efficient homes balance comfort, performance, and sustainability. Achieving that requires good design from the outset — orientation, insulation, and material choice are the foundation. It’s not about adding technology later; it’s about building intelligently from day one.

Passive Design and Building Fabric

We design with natural light, heat, and ventilation in mind. Every detail, from window placement to airtightness, is planned with purpose. The most sustainable energy is the energy you never need to use.

Balancing Cost and Long-Term Value

When designed properly, high-performance homes reduce running costs, improve comfort, and maintain long-term value. A well-built energy-efficient home is warmer, quieter, and healthier — and future-proofed against rising energy costs.

Our Approach

We collaborate closely with clients, engineers, and contractors from concept to completion. Energy performance informs every design decision, ensuring a home that looks, feels, and functions beautifully.