Let us answer your questions!


PASSIVEBUILD manufacturing facility is based in Athy, Co. Kildare. We provide off site building manufacturing solutions. Our focus is building high quality bespoke extensions, garden rooms and small houses. We can take your project right from initial concept to completion and project sign off.

What are PASSIVEBUILD aims?

While placing a passive quality extension on to your house will not make your entire house passive level. You can be assured your new build is of top quality with extremely high levels of insulation and air tightness. It also ensures that even though your house is now larger, energy costs will not increase to maintain the same comfort level throughout the entire house. – A quality building comes with using quality products. We are working with only the foremost building materials and suppliers. Building only with materials that last through time. – Preparing most of the work in our factory, delivering as close to a finished product as possible to site ensures tight quality control, our construction times are fast : with minimal time on site, ensuring a hassle free build. – Our buildings are eco friendly, and our passive extensions will enable you to increase the surface area of your house, with very minimal energy consumption.

What kind of materials are used?

Only top quality material are use to build the PASSIVEBUILD products. The steel used for the structure of our construction is made to last through time. Using high density polyurethane foam insulation we build a passive standard with minimal wall thickness. The energy consumption of your house won’t increase, and the hardwood flooring will add a warm atmosphere to the room. Our large range of windows suit the configuration required : bifolding doors, lift and slide doors, french doors… The decking around the extension is made to last for years, whatever the weather, providing you a nice WPC deck to enjoy your garden. This also provides the finishing touch to your garden and installed within our tight on site timeline also, due to factory assembly .


We provide a variety of services related to modular houses and extensions.

If you are thinking about modular bathrooms, modular houses, modular kitchens or modular extensions then passivebuild is the place to visit.

Contact Us

  • Kildare Road Business Park, Geraldine Road, Athy, Co.Kildare, Ireland
  • +353 59 863 3293
  • info@passivebuild.ie

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