Omni La Mansión del Rio
112 College Street
San Antonio, Texas 78205

Omni La Mansión Del Rio History

Omni La Mansión del Rio exterior
Historic Hotels of America logo

Discover a history as intriguing as San Antonio itself

Sixteen years after the fall of the Alamo, in 1852, four brothers of the society of Mary arrived in San Antonio to establish a school. Construction of this building began immediately and opened its doors on March 1, 1853, to more than a hundred students. In fall of 1854, two additional brothers joined the faculty and by 1870, it was a well-proportioned structure of limestone, typically European in style. 

The College Street campus grew and prospered as St Mary’s academy until 1924 and after that as St Mary’s College. From 1934-1966 the building housed St Mary’s University School of Law. Two former students purchased the property in 1966 and work began on a new hotel. In April 1968, La Mansion del Rio opened its doors as a luxury hotel, just in time for Hemisfair, San Antonio’s 1968 World Fair. Omni Hotels acquired La Mansion in 2006.

To learn more about the history of Omni La Mansión del Rio, we invite you to schedule a history tour of the property with our concierge.

Guest Favorites

at Omni La Mansión del Rio

Mokara Spa indoor hot tub

Mokara Spa

Discover a truly memorable spa experience at San Antonio’s only Forbes Four-Star Spa.

San Antonio River Walk

Rio Cruise Package

Stay in the heart of the action and enjoy luxury room accommodations, daily breakfast, tickets to the Rio San Antonio River Cruise, complimentary valet and more.

Outdoor pool at the resort.

Courtyard Pool

Escape to our intimate courtyard and relax by our heated pool.