Estadio Municipal Javier Muñoz Delgado

The ground faces the Plaza de Armas across Avenida Maipú. That position was not always the club's own: the site had belonged to the Bishopric, and Unión Católica had played there before the municipality bought the land and cleared it for a new stadium.

The council paid for the build and carried it out under Mayor Pablo Casas Auger, with Unión San Felipe backing the project. What went up in 1958 was built to last on the material side — concrete and iron — and Philips Chilena supplied the floodlights that came with the new ground.

The pitch has stayed natural grass since.