History

“A Night In Old San Antonio®” (NIOSA®) is a four-night festival in the heart of downtown San Antonio that celebrates the city’s diverse cultural legacy for more than 85,000 revelers annually. Sponsored by and benefiting The Conservation Society of San Antonio, the 79th presentation of NIOSA will be held on April 20 - 23, 2027, during the city’s Fiesta San Antonio® celebration.

Founded in 1924, The Conservation Society of San Antonio is one of the oldest and most active community preservation groups in the United States. Beginning with efforts to prevent historic structures from being razed and to preserve such unique sites as the city’s Spanish Colonial missions, the society has been responsible for saving most of the historic attractions that now make San Antonio one of the top tourist destinations in Texas.

That Was Then...

NIOSA’s roots date back to 1936, when The Conservation Society of San Antonio hosted a harvest festival on the grounds of Mission San José. Two years later, the event evolved into the “Indian Festival,” a one-night street fair held in the fall and inspired by the fiestas of San Antonio’s early days. That first festival generated $336.11 for the Society’s preservation efforts.

From 1936 through 1946—except for interruptions during World War II in 1943 and 1945—the event continued under various names and formats. In 1944, it became known as the “River Festival.” Then, in 1946, the City of San Antonio invited The Conservation Society to move its celebration to coincide with Fiesta. Two years later, in 1948, the festival was officially called “A Night In Old San Antonio” for the first time.

What began as a one-street, one-night gathering steadily grew in popularity. By 1958, NIOSA had expanded to four nights, and in 1966, the name “A Night In Old San Antonio” was officially registered and trademarked, securing its exclusive use by The Conservation Society.

In those early years, NIOSA depended entirely on the dedication and generosity of Society members. Volunteers prepared food in their own homes, including the famous chili served at the chili stands introduced in 1947 and modeled after those found in San Antonio’s historic plazas. Members baked desserts, crafted homemade candies, and even supplied flowers from their own gardens to decorate the festival grounds.

As attendance grew, so did the demand for food and supplies. Society members who were unable to contribute homemade candy were asked to donate one dollar instead. By 1953, the event had outgrown the capacity of members’ kitchens, prompting The Conservation Society to purchase pies from some of San Antonio’s finest bakeries and order an astounding 1,000 dozen tamales to help feed festival-goers.

From these humble beginnings, NIOSA has grown into one of San Antonio’s most cherished traditions, while remaining true to its mission of celebrating the city’s rich cultural heritage and supporting historic preservation.

THIS IS NOW…

NIOSA is the nation’s premier fundraiser for historic preservation and proudly lives up to its motto, “A Celebration for Preservation.” Funds raised each year enable The Conservation Society of San Antonio to continue its mission of preserving the historic buildings, objects, places, and customs that tell the story of Texas and celebrate all that is uniquely distinctive about our state.

Of the approximately $1.5 million generated annually by NIOSA, proceeds support the restoration and preservation of historic properties and parks throughout San Antonio. These funds also sustain educational and advocacy initiatives, including Heritage Education Tours, seminars, community tours, scholarships, the Society’s resource library, and its historic house museums.

Through the magic of more than 155 food, beverage, and atmosphere booths, multiple entertainment stages, colorful decorations, unique souvenirs, and thousands of dedicated volunteers, NIOSA brings San Antonio’s rich cultural heritage to life across 14 distinctive cultural areas.

Each year, NIOSA guests enjoy an incredible amount of food and drink, including:

• More than 17,000 pounds of beef
• Over 11,000 pounds of chicken
• Approximately 5,000 pounds of sausage
• More than 3,000 turkey legs
• Over 25,000 buns, rolls, and bolillos
• Nearly 30,000 tortillas
• More than 2,000 pounds of masa
• Approximately 6,000 tamales
• Over 15,000 pounds of fresh fruits and vegetables
• More than 1,000 pounds of guacamole

However, Some Things Never Change

While NIOSA has grown tremendously over the decades, its commitment to tradition remains at the heart of the event.

• Food items are created, perfected, and prepared by NIOSA volunteers in certified NIOSA kitchens and on-site. Many recipes reflect the unique cultural areas where they are served, and some can only be enjoyed during NIOSA.
• Every booth is operated by dedicated Conservation Society volunteers, many representing second- and third-generation NIOSA families.
• Volunteers travel from across Texas and throughout the United States each year to help make NIOSA a success.
• The spirit of community, preservation, and celebration that inspired the first NIOSA continues to define the festival today.