Zagreb, residential building land, buying

We are looking for residential building land for few well-known buyers.
Zagreb, locations:
Maksimir (Maksimirska and Petrova streets),
Šalata (Grškovićeva street, Ružičnjak, Babonićeva),
Medveščak (Ribnjak, Mirogojska, Rockefellerova)
Center (Vlaška Street, Ilica, Gundulićeva, Medulićeva),
Trešnjevka north (Nova cesta, Trakošćanska, Kranjčevićeva, Ozaljska, Tratinska, Selska). Vrbani III.
Payment: in cash, compensation with apartments in the same or apartments in another location, or a combination of cash and an apartment.