Ronan MacDiarmada & Associates Ltd is a leading landscape architecture practice based in County Dublin. Established in 2001 by Ronan MacDiarmada, we have grown into a vibrant, experienced team known for delivering thoughtful, sustainable, and visually compelling landscape solutions. We offer a comprehensive range of landscape architecture services, including pre-planning advice, visual impact assessment, concept and detailed design, tender and construction documentation, on-site supervision and post-construction support.

Our work spans both public and private sectors, with expertise in public realm projects, commercial and residential developments, and institutional landscapes for healthcare and education. From initial concept through to project completion, we integrate creative design thinking, technical precision, and environmental stewardship. We prioritise biodiversity, preserve and enhance natural features, and embed sustainability into every stage of the design process.

As proud signatories of the All-Ireland Pollinator Plan and registered members of the Irish Landscape Institute, we are committed to creating landscapes that are ecologically resilient and people centred. What sets us apart is our collaborative approach and dedication to design excellence. Our team’s hands-on expertise ensures our projects are both aspirational and deliverable.

RMDA brings craftsmanship, attention to detail, and a passion for sustainable placemaking to every project. Our clients return to us time and again for our reliable delivery, open communication, and creative, solution-focused approach. At RMDA, we look forward to shaping landscapes that work beautifully for people, communities, and the environment.