The mayor said that there were over 5,000 residents of Islamic faith in Pula which has 57,500 residents, according to the 2011 census.
Miletic said that the future multipurpose religious centre would be compatible with the local environment and architectural heritage.
"The examples of similar religious premises in Rijeka and Zagreb testify to togetherness and coexistence that should be fostered," the mayor added.
In Croatia, mosques with minarets have so far been built in the capital of Zagreb, Rijeka and in the eastern municipality of Gunja.
In late 2013, the authorities in the biggest eastern city of Osijek expressed support to plans to build a mosque there.