The former Harris Trust & Savings Bank complex at 111 W. Monroe St. in the Loop would be designated as an official Chicago landmark under a proposal introduced to City Council today.

Comprised of a Classical Revival building constructed in 1911 and a modern east tower added in 1960 and designed by Walter Netsch, the complex reflects the Loop’s growth as a financial center during the 20th century.

The landmark designation would protect all exterior elevations of the property, as well as the bas relief bronze lion sculptures on the facade of the 1911 building.

In conjunction with the designation, the site is proposed for a Cook County Class L property tax incentive valued at $19.4 million over the next 12 years.

City Council previously approved a planned $179.2 million adaptive reuse project for 111 W. Monroe that would convert 315,000 square feet of office space to create 345 mixedincome residences, part of a City initiative to repurpose underutilized high-rises on the LaSalle corridor.