there is no problem to keep bees everywhere you want in Czech Republic, if you have permission of land owner and your neighbours do not protest. I think, bees are kept in the gardens all over Prague and suburbs. But be careful, most of town people are afraid of bees, so choose you site with care. About legislative process contact our http://www.vcelarstvi.cz/Bee Keepers Union
or Beekepers Workgroup
, because I don´t know how can foreign people become beekeper here.