Cantilever Modular Balconies, Merrion Road

The 143 Merrion Road development blends Georgian and Victorian influences with contemporary urban design. O’Carroll Engineering’s cantilevered balconies were central to the visual and structural success of the project, delivering 74 bespoke balconies that mirror the building’s sharp roofline and dual-tone brick façade.

The client required outdoor spaces that maximised views over Sandymount Strand while preserving the building’s refined proportions. O’Carroll Engineering devised a minimalist cantilever system to suit the complex geometry, ensuring clean sight lines and consistent structural performance.

Galvanised mild steel support arms were precision-engineered for strength and subtlety, while black powder-coated aluminium soffits provided a sleek contrast to the brickwork. All components were manufactured off-site to millimetre precision using 3D modelling and CNC/laser cutting, including fitted glass balustrades and integrated drainage.

Installation posed logistical challenges due to the site’s restricted access on Merrion Road. A just-in-time delivery strategy and detailed coordination with crane and traffic schedules ensured smooth progress. Close collaboration with Lioncor, MDO Architects and Tent Consulting Engineers ensured alignment at every stage.

The result is a structurally sound, visually elegant solution featuring toughened glass balustrades, stainless steel handrails, and a concealed rainwater management system, delivering performance, safety and longevity in a high-profile location.