What to do with the tenant who refuses to evict after serving the 12 months notice properly?

I bought a property in January 2022. I gave a 12 months' eviction letter through the notary under the major renovation clause.

We are now 14 days before the eviction day and the tenant refuses to leave (the reason is that he needs 1 more month as he bought a property that is not handed over yet).

I have already the contractor company booked to start the work.

What are my rights in this case and how can I have the tenant leave on time?