Transwestern Houston had the assignment when the class A office building changed hands earlier this month. Behringer Harvard Opportunity REIT I Inc. bought 100 Glenborough Dr. for $32.9 million from New York City-based Commercial Developments International.

A Transwestern spokesman declined comment about the assignment change. But, he did point out that the team represented Commercial Developments in the sale and had negotiated the headquarters renewal with long-term tenant Noble Energy Inc.

Mark Nicholson, CBRE's managing director of asset services, says his team is currently helping Noble Energy implement some building upgrades. Improvements will include installation of a security system and cosmetic changes.

Nicholson points out the new assignment pushes CBRE into the far north submarket. "I want us to establish a presence there, and in time, an office," he says. "As opportunities come up and we can say we have an established presence in the market, that'll help us in the long run."

Nicholson tells GlobeSt.com that the assignment also puts CBRE on a rapid track toward expanding its asset management arm. Although he doesn't have a Greenspoint goal written in stone, he says he wants to be ready for future assignments as he was in the Energy Corridor.

"We picked up the Core Building over on Enclave Parkway and we're bidding on other properties," Nicholson says. "There's a lot of opportunity out there and we're ready to take advantage of it."