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
Sligo
MSLTEB Energy Build
A working NZEB and retrofit training centre for Mayo, Sligo and Leitrim ETB at Sligo College, designed by Mosart to give construction learners direct, hands-on experience of high-performance building methods.
Galway
Galway City Council – Pathfinder
A public sector deep retrofit programme for Galway City Council, delivering measurable reductions in carbon emissions and primary energy use across two community centres in Knocknacarra and Ballinfoile.
Carrick On Shannon
Leitrim County Council – Pathfinder
A public sector deep retrofit programme for Leitrim County Council, targeting 50% reductions in carbon emissions and primary energy use across three protected structures in Carrick-on-Shannon.
Canary Wharf, London
2 Trafalgar Way
A triple-tower mixed-use development in Canary Wharf targeting Passivhaus certification at a scale that would make it the largest such development in Europe, with Mosart serving as Passivhaus designer.
London, UK
Urbanest Battersea
The largest certified Passivhaus building in the UK, urbanest Battersea delivers 853 student bedspaces in Nine Elms, London, with Mosart serving as co-Passivhaus designer on the landmark scheme.
Manchester, UK
UoM, Fallowfield Campus
A major redevelopment of the University of Manchester’s Fallowfield Campus delivering 3,300 student bedspaces and targeting Passivhaus certification at a scale that could rank among the largest certified schemes in the world.
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.