DGNB Sprechstunde

DGNB Office Hour

Are you a planner, architect, builder or auditor and would like to learn more about the DGNB system? Do you have a specific question or concern regarding DGNB certification? Your question cannot be found in our DGNB FAQs?

We would be happy to advise you individually during the DGNB office hours according to your wishes: in person, by telephone or in a web conference.

Our certification team will quickly and easily coordinate appointments with you and a DGNB expert.

You can reach us Monday to Friday from 9 a.m. to 1 p.m.:

Levan Ekhvaia - International Certification
Tel: +49 711 722322-84

Kai Zhang - Director DGNB Certification China
Tel: +49 711 722322-65

Navigator Hotline

Navigator Hotline

If you have any questions about the DGNB Navigator, our service hotline will be happy to help you.
+49 (0)711 722322-11

learn more


Levan Ekhvaia
Manager International Certification
Phone: +49 711 722322-84
l.ekhvaia at dgnb.de