Balfour Beatty Construction is extending its Uptown Dallas headquarters lease.

The general contractor occupied almost 47,000 square feet of office space in the Citymark at Katy Trail building at 3100 McKinnon Street.

Balfour Beatty is the largest tenant in the 11-story high-rise at the southern entrance of the Dallas North Tollway.

About 200 Balfour Beatty workers are housed in the Uptown head office.

The owners represented by Bradford Commercial Real Estate just spent $7.5 million to renovate the 31-year-old office building.

Improvements to the building include a 1-acre deck park, deli and fitness center. Balfour Beatty plans to renovate its offices, too.

"Balfour Beatty, which greatly influenced Citymark's renovation, is planning to design an equally noteworthy headquarters and create more efficient use of its leased space," Bradford's Richmond Collinsworth said in a statement.

Phil Puckett, Neal Puckett and Harlan Davis of CBRE negotiated the lease which downsized Balfour Beatty's offices.

The contractor is the U.S. subsidiary of London-based Balfour Beatty plc.