Ireland’s leader in Passivhaus at scale
We have designed, certified, and monitored more large-scale Passivhaus projects than any other practice in Ireland.
From the first certified Passivhaus in the English-speaking world to today’s largest residential schemes, Mosart’s team of six certified Passivhaus certifiers works with Ireland’s leading developers and housing bodies to deliver buildings that actually perform.
Architecture
Passivhaus-led design from concept through planning to completion, with deep building physics expertise embedded from day one.
Consulting
Certification, thermal bridge analysis, energy modelling, airtightness strategy, and post-occupancy evaluation at any scale.
Learning & Development
Industry-leading Certified Passive House Designer training, equipping the next generation of high-performance building professionals.
Trusted by Ireland’s leading developers and housing bodies
Over 4 million square feet of Passivhaus projects delivered across the globe’s most significant residential and commercial developments
Our portfolio spans social housing, cost-rental, student accommodation, commercial offices, and large-scale mixed-use developments. Every project benefits from our 30+ years of building physics expertise and proprietary performance monitoring.
Projects Overview
Belfast
Weavers’ Hall
Queen’s University Belfast commissioned Weavers’ Hall as purpose-built student accommodation on Dublin Road, on a site historically occupied by linen weaving works, a heritage the building’s name directly acknowledges.
Dublin
Whitehaven
Whitehaven is one of Ireland’s major Passive House schemes, delivering 255 social and cost-rental homes in Santry.
Dublin
Pipers Square
Pipers Square is a flagship development by Cairn Homes, featuring 598 high-performance apartments designed to the rigorous standards of the Passivhaus Institute.
Dublin
Niven Oaks
Niven Oaks is a major residential development in Santry comprising 268 apartments designed to meet the Passive House standard.
Meath
Kilbride
Kilbride, Co. Meath features a sustainable village-edge housing design by Mosart, combining tradition, modernity and low energy performance.
Dún Laoghaire
Rochestown House
Rochestown House in Dublin sets a benchmark for sustainable social housing, with Mosart as Passive House consultants achieving certified low-energy performance.
New York
The House at Cornell Tech
Standing 26 storeys tall on Roosevelt Island in the East River, The House at Cornell Tech redefined the potential of sustainable high-rise living. At the time of its completion, it was the tallest and largest residential Passive House certified building in the world.
Enniscorthy
Old Forge Road
Old Forge Road is a major master planning project on the northern edge of Enniscorthy, transforming a greenfield site into a connected, mixed-use neighbourhood of nearly 200 homes.
Ireland
The Standard
Guided by Passivhaus principles, the building sets a benchmark for energy efficiency and occupant comfort.