Thai Soon Restaurant, a fixture of North Texas dining for nearly 40 years, will close its doors in Richardson on August 23, 2026, after owner Irean Wongchingchai cited mounting rent pressures that finally proved insurmountable. The closure ends a run that began in 1987 on Lower Greenville as Dallas's first Thai vegetarian restaurant before the business relocated to Richardson in 2001.
Wongchingchai, who now runs the restaurant her mother Soontaree Chanchaisri founded, described the shutdown as the most difficult decision of her life in a social media announcement, according to WFAA. She said persistent difficulty keeping up with rent drove the decision, and she noted she hopes to find future ways to share her mother's recipes with the community. In comments to Community Impact, Wongchingchai said she enjoyed getting to know customers throughout the years the restaurant has served the community.
The closure was not entirely unforeseen. Back in March 2026, Thai Soon came within days of shutting down over surging ingredient prices and rent pressures, and the restaurant's doors stayed open only after a wave of customer support rallied to keep it running, per WFAA's earlier reporting. That temporary reprieve appears to have run its course five months later.
A Legacy Built on Family Recipes
Thai Soon's scratch-made menu was built on recipes passed down from Chanchaisri, affectionately known to regulars as Mama Soon, and included signature dishes like Tom Kha coconut soup and a red curry made with specialized coconut milk, according to the restaurant's own website. The business aimed to serve healthy, fresh ingredients to the community it had called home for almost 40 years. Community Impact reports the restaurant has operated at its current Richardson location, 101 S. Coit Road, Suite 401, since the 2001 move.
To give longtime diners extra chances to say goodbye, Thai Soon expanded its hours to include Sundays during its final weeks, as reported by CultureMap Dallas. The restaurant will serve its last dinner service on August 23.
Another Vacancy Along the Coit Road Corridor
Thai Soon operates within Dal-Rich Towne Square, a 162,962-square-foot retail strip center anchored by Cottonwood Market at the intersection of Coit and West Belt Line roads, according to a LoopNet listing. Its departure marks the second restaurant closure at that same center in 2026, following the June shutdown of quick-service Turkish eatery Selda Doner and Gyro, which closed nearby in the same retail development, as per Hoodline.
The pattern extends beyond Dal-Rich Towne Square. Long-standing fast-casual chain Jason's Deli also permanently closed its nearby location at Dal-Rich Plaza this month, part of what Hoodline has described as a broader wave of commercial turnover along Richardson's Coit Road corridor.
Independent Restaurants Feel the Squeeze Statewide
The struggles facing Thai Soon reflect a much larger financial reckoning among Texas restaurants. Survey data tracked by the National Restaurant Association and released by the Texas Restaurant Association found that roughly 42% to 50% of Texas restaurant operators were not profitable in 2025, as compounding food, labor, and operational overhead costs squeezed margins across the industry.
Texas Restaurant Association Chief Public Affairs Officer Kelsey Erickson Streufert noted in March that independent mom-and-pop restaurants face acute vulnerability during inflationary cycles because they lack the bulk purchasing power and operational scale available to national chain brands. For a business like Thai Soon, built from a single family's recipes and nearly four decades of community goodwill, that structural disadvantage ultimately proved decisive.
