The DGNB certificate for sustainable interiors will be awarded after completion. Because of the usually short planning phases, no pre-certificate is offered. At the time of handing in the documents of proof for conformity assessment at the DGNB, the interior fitting and furnishing should be in place and in an operational phase.
The validity of the certificate for offices expires after 10 years, the one for retail after five years.
Converting or renovating the space has an impact on the original assessment and can be result in expiring the certificate. If the requirements of the indicator 1 of the criterion SOC1.2 (Indoor Air Quality) cannot be met, the certificate loses its validity immediately.
To extend the validity of the certificate for another five years, is has to be renewed before the expiration date.