Buildings that fail to meet this requirement can no longer be used as offices. Dutch banks are getting involved by adding surcharges to, or outright withholding, funding for non-sustainable buildings. At the same time they are offering energy efficiency plans and financing to owners that need to upgrade their buildings.
Expectations are that the estimated 860 million euro in investments necessary to meet the target will be realized much earlier than 2023. There are more examples. I name but two: All new public transportations busses in The Netherlands will be emission-free as of 2025. According to current government policy in The Netherlands the same holds true for all new passenger cars of 2035.