The news comes as Savills Leeds was given the green light from Leeds City Council on a major proposal to modernise the landmark building.
6-7 Park Row was purpose-built in the early 1970s and comprises a 10-storey office building located at the junction of Park Row and Bond Street, close to the new Trinity Leeds shopping centre and Leeds train station.
The comprehensive refurbishment of the building will create 553 sq m of additional floorspace and two new entrances.
The upper floors of the building will be refurbished to provide Grade A standard office accommodation, with the ground floor being part converted to a restaurant.
The lower basement of the building has also secured consent for a range of flexible uses, including use as a restaurant, bar, or a gymnasium.
Oliver Freer, associate planner in Savills' Leeds office, said: “Park Row lies between the retail and office quarters in the city centre and securing this permission is certain to have a positive effect on this important gateway.
“The works to the ground floor and flexible uses approved to the lower basement will increase the building’s appeal to a wide range of future occupiers.
“We worked closely with officers from Leeds City Council to secure these changes and have been greatly encouraged by their flexible approach”.
Savills acted on behalf of CBRE Global Investors in securing planning permission.