The owners of a drab office building at the corner of 15th and Curtis streets previously occupied by CenturyLink plan to give the structure a new face as part of an effort to better compete for tenants in downtown Denver.

Real estate investment firms SteelWave and Rialto Capital Management recently partnered to buy the building at 930 15th St. for an undisclosed sum, according to a news release from Newmark Knight Frank. The team plans to transform the 12-story, 223,000-square-foot building — built in 1980, according to city records — into an attractive option for companies looking for big chunks of square footage downtown, the release said.

Planned upgrades include installation of an exterior glass curtain wall that will replace the large tiles that cover much of the building today. A robotic parking lift system, updated fitness center and rooftop terrace will also be added as part of the work expected to wrap up in 2020.

The reposition comes at a time when many owners are investing in older downtown buildings as they seek to compete with new and redeveloped office space options in the Central Platte Valley, Lower Downtown and River North areas of the city. Newmark Knight Frank, which is handling marketing and leasing for 930 15th St., has projected downtown Denver office needs will exceed 1 million square feet every year through 2021.