SKYDB Building database

Tall buildings worldwide, with heights, construction status and the companies involved.

Rankings of tall buildings

Tall Building Markets

Tall buildings, tracked.

SKYDB is collecting verifiable information about buildings.

definition strict definition

ÖGNI Certificate

The Austrian sustainable building certificate, issued on the German DGNB system.

The Austrian Sustainable Building Council certifies buildings using the DGNB system adapted to Austrian conditions, retaining the shared assessment framework and award levels while applying the relevant Austrian requirements.

A building certified in Austria therefore carries an Austrian certificate against essentially the German standard, which is why the two appear side by side in international comparisons.

The assessment combines environmental performance with economic and sociocultural quality. Its level reflects the applicable overall score and minimum requirements, rather than a single measure such as energy use.