"Development Downtown Houston" (Archive). CentralHouston. p. 14/17. Retrieved on April 14, 2014. "1999 Bob Lanier Building 611 Walker. City of Houston conversion of the former Houston Lighting & Power office building into offices for Houston Public Works. Includes new tunnel links. Developer: City of Houston. Estimated cost: $43 million."
"Development Downtown Houston" (Archive). CentralHouston. p. 14/17. Retrieved on April 14, 2014. "1999 Bob Lanier Building 611 Walker. City of Houston conversion of the former Houston Lighting & Power office building into offices for Houston Public Works. Includes new tunnel links. Developer: City of Houston. Estimated cost: $43 million."