Funding type
This project is privately funded, on private land for private use.
Casa Masa Restaurant in Round Rock, TX
409 N. Mays St., Round Rock, TX, 78664
Casa Masa Restaurant is a additions to existing building project at 409 N. Mays St., Round Rock, in Williamson County, TX, tracked from its Texas Department of Licensing and Regulation (TDLR) registration. Under construction, estimated completion Dec 2026. The project has an estimated value of $500K across about 2,812 sq ft.
- Estimated project value
- $500K
About this figure
Estimated construction cost supplied in the TDLR filing. This is not a current property appraisal or a final construction invoice.
- Reported floor area
- 2,812 ft²
About this figure
Square footage reported for this scope of work. It may cover only part of a larger property.
- Estimated cost / ft²
- $178/sqft
About this figure
Calculated from this filing’s estimated cost divided by its reported square footage. Available only when both figures are supplied; it is not a market benchmark.
- Scheduled duration
- 6 months
About this figure
The interval between the filed start and completion dates. These dates describe the proposed schedule and do not measure actual construction progress.
The project record
Project timeline
Explore filed milestones and scheduled dates. Open a milestone for its source.
4 timeline dates shown.
Project registered · TDLR filing
Registration of the project with the Texas Department of Licensing and Regulation.
Source: TDLR filing
View source recordReview complete · TDLR filing
The filing records completion of the accessibility review.
7 days after the preceding date shown.
Source: TDLR filing
View source recordScheduled construction start · Scheduled date
A date supplied in the filing; this does not confirm that work started or finished.
53 days after the preceding date shown.
Source: TDLR filing
View source recordScheduled completion · Scheduled date
A date supplied in the filing; this does not confirm that work started or finished.
170 days after the preceding date shown.
Source: TDLR filing
View source record
📰About Casa Masa Restaurant
Casa Masa Restaurant is a $500,000 renovation and expansion project located at 409 N. Mays St. in Round Rock, Texas. The work involves remodeling an existing building originally constructed in 1984 to create dedicated dining space. The scope of work includes specific additions for a kitchen, a tortilleria, and storage areas, totaling 2,812 square feet of new or modified space.
The project is owned by N Mays, LLC, with Spencer-Pierce Architecture + Interiors, Inc. serving as the design firm of record. Steve R Zoerner is the registered accessibility specialist. This development is privately funded on private land for private use. TDLR completed plan review in April 2026 and construction is scheduled to finish in December 2026, with work starting June 2026.
Project Scope and Design
The primary focus of the filing is the transformation of the 1984 structure into a functional restaurant environment. The inclusion of a tortilleria suggests an emphasis on fresh, on-site food production as a core part of the dining experience. The addition of dedicated storage and kitchen facilities supports the operational needs of a full-service dining establishment. The estimated cost of $178 per square foot is close to the county median of $163 per square foot for similar additions to existing buildings in Williamson County.
Spencer-Pierce Architecture + Interiors, Inc. has other TDLR-registered projects in the region, including locations in Austin and Cedar Park. This project follows a standard timeline for commercial renovations of this scale, with a scheduled build window of 170 days. This duration is close to the county median of 206 days for comparable filings.
Local Context
The project is situated in ZIP code 78664, where the U.S. Census ACS 2023 five-year estimates indicate a population of about 62,272. The median household income in this area is $85,919, and the median owner-occupied home value is $317,400. Housing in this ZIP code is an even mix of owner- and renter-occupied units. Local coverage from whatnow.com described the project as a new restaurant in the works at the intersection of North Mays Street and East Milam Ave.
Williamson County has seen activity in the restaurant sector, with filings for various dining establishments in Round Rock. The unemployment rate in Williamson County was 4.1 percent in July 2026, higher than a year earlier. The project status is Review Complete, indicating that the regulatory plan review phase has been successfully concluded prior to the start of construction.
Review Complete
Design review complete, construction may proceed
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Casa Masa Restaurant is a Additions to Existing Building project located at 409 N. Mays St., Round Rock, TX 78664 in Round Rock, Texas. The project has an estimated value of $500K covering 2,812 sq ft. N Mays, LLC is the property owner and Spencer-Pierce Architecture + Interiors, Inc. is the design firm of record. The project was registered with TDLR on April 16, 2026.
Frequently Asked Questions
What is the total square footage of the project?
The project involves 2,812 square feet of work, which includes the remodel of the existing building and the new additions for the kitchen, tortilleria, and storage.
Who is the design firm for Casa Masa Restaurant?
Spencer-Pierce Architecture + Interiors, Inc. is the design firm of record for this project. They are responsible for the architectural and interior design aspects of the renovation and expansion.
Is the restaurant open for business?
No, the project is in the construction phase. TDLR completed plan review in April 2026, and construction is scheduled to finish in December 2026. The record does not indicate that the business is operating.
What specific additions are being made to the building?
The filing specifies that additions to the building include a kitchen, a tortilleria, and storage. The existing 1984 structure is being remodeled to accommodate dining space.
What is the estimated cost per square foot?
The estimated cost is $178 per square foot. This figure is close to the Williamson County median of $163 per square foot for similar additions to existing building filings.
What is Casa Masa Restaurant?
Casa Masa Restaurant is a additions to existing building project at 409 N. Mays St. in Round Rock, Texas, registered with the Texas Department of Licensing and Regulation (TDLR). Scope of work: Remodel existing building built in 1984 for dining space, additions to the building include kitchen and tortilleria and storage.
Is Casa Masa Restaurant open in Round Rock?
Casa Masa Restaurant is still under construction in Round Rock, TX, with an estimated completion of Dec 2026 according to its TDLR registration.
Where is Casa Masa Restaurant located?
Casa Masa Restaurant is located at 409 N. Mays St., Round Rock, TX, 78664, in Williamson County.
Who is the owner or developer of Casa Masa Restaurant?
N Mays, LLC is the property owner/developer of record for Casa Masa Restaurant, per its TDLR project registration.
Who is the architect or design firm for Casa Masa Restaurant?
Spencer-Pierce Architecture + Interiors, Inc. is the design firm of record for Casa Masa Restaurant, according to its TDLR filing.
How much does Casa Masa Restaurant cost and how big is it?
Casa Masa Restaurant has an estimated construction value of $500K and approximately 2,812 square feet (about $178/sqft), based on its TDLR filing.
Scope of Work
Remodel existing building built in 1984 for dining space, additions to the building include kitchen and tortilleria and storage.
Note: This project is registered under the Texas Accessibility Standards (TAS) program. TDLR registration is required for commercial and public facility construction to ensure compliance with accessibility requirements under Texas Government Code Chapter 469.
Location & views
409 N. Mays St., Round Rock, TX, 78664
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