[2] He served as an Extension Technician for the National Milk Producers Cooperative (Conaprole) in the departments of Maldonado and Rocha for twenty years.

[3] Born in Maldonado as the son of the architect Enrique Antía Arlo and Consuelo Behrens Muñoz,[4] Antía is the first cousin of the former Minister of Transport and Public Works, Lucio Cáceres Behrens, on his maternal side, and his mother is the first cousin of the well-known actress China Zorrilla.

[6] In the 2005 municipal elections, Antía was again a candidate for Intendant, being defeated by the Broad Front nominee Óscar de los Santos.

In July of that year he was appointed to the board of directors of the National Administration of Power Plants and Transmissions (UTE).

[8] In 2019 he was pre-candidate for president for the National Party in the presidential primaries;[9] he obtained 7.51% of the votes, being defeated by Luis Lacalle Pou, who was the candidate in the general election.