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klimaaktiv buildings

klimaaktiv buildings represents energy efficiency, ecological quality, comfort and quality of workmanship. To make the quality of a building measurable and comparable, the klimaaktiv building standard was developed. The 1,000 point system distinguishes buildings that meet particularly high requirements. Many examples show that ambitious building has its place in Austria.

The IBO efficiently leads certifications to a high score with many years of experience. Auditors can also outsource individual verifications such as OI3 calculations, presentation of disposal properties or the recyclability of products, data and verification compilations to IBO.

Reference projects (selection)


EU GreenBuildingklimaaktiv
ÖGNB/TQBBuilding physicsPassive House ConsultingProduct testBuilding product managementCircular economy

aspern IQ – technology centre Aspern, Seestadt
Plus energy office, new building

klimaaktiv Gold with 1,000 points, ÖGNB/TQB with 974 points


klimaaktivÖGNB/TQB
Building physics

VELUX Sunlighthouse
Residential building, new building

klimaaktiv Gold with 963 points, ÖGNB/TQB 963 points, Austrian State Prize for Environment and Energy Technology 2010


Building physics calculationsklimaaktiv

School ASO4, Linz
Renovation and conversion to passive house standard

The IBO was awarded the State Prize for Architecture and Sustainability 2012 for its building physics planning.