Yeah - it used to be a pretty gigantic complex & it is now being re-developed: https://www.novazbrojovka.cz/

It will essentially become a whole new quarter, with housing, office/retail space and new schools. That's how big it was.

BTW, main focus now in Brno is high tech (a lot of electron microscopy), IT (Red Hat, Kiwi, YSOFT, Seznam, Netsuite, Avast, etc.) and lately also space (OHB, SAB Aerospace, etc.).