15150 Memorial - Building J

North Den Holdings Building J, filed as 15150 Memorial - Building J, is a 135,750 sq ft renovation project located at 15150 Memorial Drive in Houston. The work involved the renovation of existing flood-damaged office buildings within the Energy Corridor area of Harris County. The project was registered with TDLR in May 2019 and is now marked as Project Closed.

The estimated cost for this renovation was $3,000,000, which calculates to $22 per square foot. This cost per square foot is below the county median of $80 for similar renovation and alteration filings in Harris County. The total project cost is above the county median of $250,000 for this type of work, placing it in the top quarter of registered projects by value.

S&B Engineers and Constructors served as the design firm of record for the project. The registered accessibility specialist was Jeromy G Murphy. The project is privately funded and located on private land for private use.

The scheduled build window for this project was 260 days, starting in May 2019. This duration is longer than the county median of 92 days for comparable renovation filings. The completion date on the filing was February 2020. TDLR closed the project file in February 2020, which marks the end of the accessibility review process for this construction.

Context and Comparison

S&B Engineers and Constructors has one other TDLR-registered project in the record, the Olin B-623 Control Building in Freeport, with an estimated cost of $1,300,000. That project is also closed. Other registered renovation projects in the Energy Corridor include Ashford VI, Nottingham Elementary School, Woodbranch I, OneSubsea HQ, and Energy Tower II.

The ZIP code 77079 has a population of about 35,540 and a median household income of $103,089, according to U.S. Census ACS 2023 five-year estimates. The Harris County unemployment rate was 5.2 percent in July 2026, higher than a year earlier.