Project intelligenceTDLR TABS2025011356Additions to Existing Building
Funding type

This project is privately funded, on private land for private use.

WHISPER 3 BUILDING 4 SPEC TI in San Marcos, TX

1438 SUSURRO PKWY, San Marcos, TX, 78666

Target date passed (Oct 2025)Review Complete

WHISPER 3 BUILDING 4 SPEC TI is a additions to existing building project at 1438 SUSURRO PKWY, San Marcos, in Hays County, TX, tracked from its Texas Department of Licensing and Regulation (TDLR) registration. Scheduled to finish Oct 2025 per its TDLR filing; no final inspection recorded yet. The project has an estimated value of $476K across about 3,461 sq ft.

Estimated project value
$476K
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
3,461 ft²
About this figure

Square footage reported for this scope of work. It may cover only part of a larger property.

Estimated cost / ft²
$138/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
7 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.

Feb 7, 2025236 days across supplied datesOct 1, 2025

4 timeline dates shown.

  1. Project registered · TDLR filing

    Registration of the project with the Texas Department of Licensing and Regulation.

    Source: TDLR filing

    View source record
  2. Review complete · TDLR filing

    The filing records completion of the accessibility review.

    Same day as the preceding date shown.

    Source: TDLR filing

    View source record
  3. Scheduled construction start · Scheduled date

    A date supplied in the filing; this does not confirm that work started or finished.

    22 days after the preceding date shown.

    Source: TDLR filing

    View source record
  4. Scheduled completion · Scheduled date

    A date supplied in the filing; this does not confirm that work started or finished.

    214 days after the preceding date shown.

    Source: TDLR filing

    View source record

📰About WHISPER 3 BUILDING 4 SPEC TI

Greystar registered a 3,461 sq ft addition to an existing warehouse building at 1438 Susurro Pkwy in San Marcos with the Texas Department of Licensing and Regulation. The filing, titled Whisper 3 Building 4 Spec TI, describes the scope as a new spec office for a future tenant within the existing structure.

Project Scope and Cost

The estimated cost for this construction is $476,400, which computes to $138 per square foot. This figure is close to the median cost of $476,400 and the median cost per square foot of $152 for similar additions to existing buildings in Hays County. The scheduled build window was 214 days, which is close to the county median of 213 days for this type of work.

Powers Brown Architecture served as the design firm of record, while Ernest G Taylor was the registered accessibility specialist. The project was privately funded on private land for private use. Greystar has six other TDLR-registered projects in San Marcos, totaling $2,090,100, including suites in Building 3 and two Whisper Industrial projects. Powers Brown Architecture has worked on six other registered projects across Texas, with a total value of $29,198,313.

Status and Timeline

TDLR completed plan review in February 2025, and construction was scheduled to start in March 2025. The filing listed October 2025 as the completion date. However, TDLR has not yet recorded a final inspection, so the current state of the site is not confirmed in the public record. The project status is listed as Review Complete.

The surrounding area, ZIP code 78666, has a population of about 87,775 with a median household income of $55,478 according to U.S. Census American Community Survey 2023 five-year estimates. The median owner-occupied home value is $271,900, and housing is mostly renter-occupied. Other registered projects in the immediate area include Opportunity Plaza and Tesla Logistics Building renovations.

Review Complete

Design review complete, construction may proceed

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WHISPER 3 BUILDING 4 SPEC TI is a Additions to Existing Building project located at 1438 SUSURRO PKWY, San Marcos, TX 78666 in San Marcos, Texas. The project has an estimated value of $476K covering 3,461 sq ft. GREYSTAR is the property owner and POWERS BROWN ARCHITECTURE is the design firm of record. The project was registered with TDLR on February 7, 2025.

Frequently Asked Questions

Is Building 4 in San Marcos open for business?

The TDLR record shows construction was scheduled to finish in October 2025, but the agency has not yet recorded a final inspection. Therefore, the public record does not confirm that the office is open or operating.

Who is the owner of the project at 1438 Susurro Pkwy?

Greystar is the owner or developer of record for this project. They have five other registered projects in San Marcos, including suites in Building 3 and industrial spaces.

What is the square footage of the new office space?

The addition is 3,461 sq ft. This is close to the median size of 3,502 sq ft for similar additions to existing buildings in Hays County.

What is the estimated cost per square foot?

The cost is $138 per sq ft, based on the total estimated cost of $476,400. This is close to the county median of $152 per sq ft for this project type.

Who designed the building addition?

Powers Brown Architecture is the design firm of record. They have worked on several other commercial projects in Texas, including locations in Leander and Houston.

What is WHISPER 3 BUILDING 4 SPEC TI?

WHISPER 3 BUILDING 4 SPEC TI is a additions to existing building project at 1438 SUSURRO PKWY in San Marcos, Texas, registered with the Texas Department of Licensing and Regulation (TDLR). Scope of work: NEW SPEC OFFICE FOR FUTURE TENANT IN EXISTING WAREHOUSE BUILDING

Is WHISPER 3 BUILDING 4 SPEC TI open in San Marcos?

WHISPER 3 BUILDING 4 SPEC TI was scheduled to finish construction in Oct 2025 according to its TDLR registration, but TDLR has not recorded a final accessibility inspection, so its opening status is not confirmed in the public record.

Where is WHISPER 3 BUILDING 4 SPEC TI located?

WHISPER 3 BUILDING 4 SPEC TI is located at 1438 SUSURRO PKWY, San Marcos, TX, 78666, in Hays County.

Who is the owner or developer of WHISPER 3 BUILDING 4 SPEC TI?

GREYSTAR is the property owner/developer of record for WHISPER 3 BUILDING 4 SPEC TI, per its TDLR project registration.

Who is the architect or design firm for WHISPER 3 BUILDING 4 SPEC TI?

POWERS BROWN ARCHITECTURE is the design firm of record for WHISPER 3 BUILDING 4 SPEC TI, according to its TDLR filing.

How much does WHISPER 3 BUILDING 4 SPEC TI cost and how big is it?

WHISPER 3 BUILDING 4 SPEC TI has an estimated construction value of $476K and approximately 3,461 square feet (about $138/sqft), based on its TDLR filing.

Scope of Work

NEW SPEC OFFICE FOR FUTURE TENANT IN EXISTING WAREHOUSE BUILDING

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

1438 SUSURRO PKWY, San Marcos, TX, 78666

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