The popular Santi's Restaurante Mexicano will expand to a third location by this spring.

Co-owner Santiago Zavalza confirmed Friday that he and co-owner Jeff Hefel will open a new restaurant by the end of April in the former Momma Brown's Bar-B-Q building at 1471 Ben Sawyer Blvd. in Mount Pleasant.

Santi's flagship restaurant, which opened in 2002, is at 1302 Meeting St. Road in Charleston, and the Summerville restaurant, which opened in 2009, is at 114 Holiday Drive in Summerville.