The Baitul Awal Mosque is the 1st Ahmadiyya Mosque located in Petropolis, northern town from Rio de Janerio. The mosque lies in the steep hills of Petropolis. The foundation stone was laid by Maulana Mubarak Nazir (missionary in charge Canada) on 7th June 2014. It was expected to be completed by 2015 but was inaugurated in 2017 by Wasim Ahmad Zafar, national president and missionary in-charge Brazil. Since then, Annual Jalsa Salana Convention has taken place in the mosque.
Before the establishment of Baitul Awal mosque. Missionary efforts were held through interfaith dialouge with the local community and other means of propagating the message of the Ahmadiyya Muslim Community such as featuring in ‘TVC Petropolis’ news channel.