There are various factors to be considered in selecting an Apiary site.
Consideration must be given to the general public, you do not want to create a nuisance.
Forage, is there enough food suitable for the honeybee?
Have you chosen the correct environment and do you have adaquate access?
Do you have enough space for the number of hives envisaged?
Here is an advisory leaflet on choosing_an_apiary_site from the British Beekeeping Association.