A public engagement exercise will run from today until next Friday and residents will be asked to share their views by completing a survey.
During the weekend, between 10am and 5pm, the plans will be displayed in the Academy Shopping centre on Belmont Street.
Then, from Monday to Friday next week, they will be shown at the Christmas Village on Union Terrace Gardens between 11am and 6pm.
An online survey will also be launched today and leaflets will be available at the exhibition sites and Marischal College, in addition to libraries and community centres.
A report is expected to go to full council in March next year.
Have your say on the new designs for Union Terrace Gardens