Lidan designs and manufactures high-performance timber buildings — schools, community centres and public amenities — precision-built in our Roscommon factory and assembled on site in days.
Lidan is an Irish offsite manufacturer founded in 2017 by Dan O'Brien and Liam Casey. From our factory at Roscommon Business & Technology Park, our team of master carpenters and joiners builds complete timber structures — insulated, glazed, wired, plumbed and fitted — before they ever leave the building.
That approach delivers certainty: factory-controlled quality, minimal waste, a fraction of the usual time on site, and buildings that arrive performing exactly as designed. It also sustains skilled manufacturing jobs in the west of Ireland — a founding aim of the company.
Our clients include the Office of Public Works, the Department of Education, and county councils across the country.
About Lidan →
A complete modular school for the Department of Education — classrooms, library and shared spaces, erected to roof level in days.
A 2,500 m² special educational needs building — 87% prefabricated offsite, and described in the press as a template for rapid school builds across Ireland.
Believed to be the first dwelling in Ireland fully finished offsite — kitchen, bathroom, services and all — and delivered in three weeks.
Every Lidan building is handmade by a team of carpenters and joiners with decades at the bench — working in a controlled environment where quality is checked at every stage, not weather-permitting.
The result is a level of finish that prefabrication rarely reaches: engineered timber frames, natural insulation, bespoke joinery and hardwood detailing — the same care inside the walls as on them.
How we work →
Our modular school building for St Patrick's College, Cork was independently assessed at 249 kg CO₂e/m² — against a current RIAI benchmark of 1,000 and a 2030 Climate Challenge target of 540 — earning an A+ LETI rating for both upfront and whole-life carbon.
FSC-certified Irish timber, cellulose and wood-fibre insulation, and a factory process that designs waste out rather than skipping it away.
Our sustainability record →A 1,000 square metre school, manufactured in Roscommon, craned into place in Birr — with embodied carbon beating the RIAI's 2030 target and airtightness at passive house levels.
Full magazine feature on Gaelscoil na Laochra, Birr: 488 kg CO₂e/m² embodied carbon, 0.64 ACH airtightness, ~€91 a month to heat.
Lidan delivers a 2,500 m² SEN building at St Flannan's College, Ennis — 87% prefabricated offsite.
St Patrick's College achieves 249 kg CO₂e/m² — an A+ LETI rating for upfront and whole-life carbon.
A featured Enterprise Ireland success story on offsite innovation and sustainable jobs in the west of Ireland.
Public bodies and organisations Lidan has built for — and the agencies that back our work.
