Theories on Etymology of the word Barasoain are listed in the church's comprehensive website.
According to some people who see the relevance of the name Barasoain in the Revolution, the word Barasoain came from the term "Baras ng Suwail" which means "dungeon of the defiant." It may be seen that Barasoain is the town of the nationalistic Filipino, fighting against the foreigners who oppressed the nation.
However, according to Jose P.W. Tantoco, the former president of Bulacan Historical, Inc., the name Barasoain came from the missionaries in this town who came from a similarly-named town in Spain. The town of Barasoain in Spain is located in the District of Navarra.
From Pampanga, the Augustinian missionaries arrived in Barasoain via Calumpit. Here, they saw a community that reminded them of the forest and the beauty of Barasoain in Navarra, Spain.
It can be said that a missionary from Navarra recognized his hometown he loved and considered Barasoain as his second town and he lived in one of the houses in Barasoain. During his visit in Malolos during the 1998 Independence Day Centennial Anniversary, former president Joseph Estrada stayed in this district of heritage houses.
One of the first houses in Barasoain today that serves as a commercial establishment is the Ancestral House of the former president Corazon Aquino, the 11th president of the Republic of the Philippines.
Presently, houses in Malolos City are commonly made of wood and cement, showcasing the modern construction methods prevalent in the present period. Some of the old houses still standing that show the heritage of the past are located in Barangay Anilao.