Very few to no new mosques.
Hungary = 0
Brno Mosque Czech Republic Brno 1998
Prague Mosque Czech Republic Prague 1999
Mangalia Mosque Romania Mangalia 1575
Abdul Medgid Mosque Romania Medgidia 1859
Ali-Gazi Pasha Mosque Romania Babadag 1610
.
Yep. And very few Muslims,
Unlike the other EU countries.
I think there are a couple of old mosques in Hungary, not modern structures, where worship is still allowed, such as the Mosque of Jakovali Hassan Pasha in Pecs. But I’d be happy to be proved wrong.