Builder of "Single House of the Year" Winner 2021 - Windmill Road Hillsborough

What We Do

Spearheading the revolutionary Passive House building concept. Making building of superior thermal confort and superior indoor air quality an affordable option to everyone.


As a Certified Passive House Designer and a current director..

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Whether your project is just an idea or about to start to site..

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Calling on generations of experience in building and ..

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Who We Are

Working between the UK and Ireland, GP Developments has already built up an extensive portfolio of projects, ranging from civil works to "Design and build" and turn-key projects, with an emphasis on luxury developments in desirable locations...

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What is Passive House?

The core focus of PassivHaus design is to dramatically reduce the space heating and cooling demand for new buildings. This is done so by a "fabric first" approach and a lesser reliance on the often favoured renewable energy technologies.

Passive house is a voluntary, ultra-low energy construction standard developed over 10 years ago by Dr Wolfgang Feist of the PassivHaus Institute Darmstadt, Germany. Often the "Passive House" label is applied to many buildings in the wrong context, as it is synonymous with a superior building method. However a building may only be afforded this title and associated logo should it comply with the strict building code as set out by the Passive House Institute.

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