Park Merriton - A proposed 12, 10, 8, 6, Apartment buildings and 2 x 3 Storey buildings with 410 units each, located on 10 Seymour Avenue, designed by Masrio O Inc Architects for Fullview International Group in St. Catharines Merritton neighbourhood.
The information posted above by @Branden Simon reflects the previous concept for redevelopment at this site.
Currently as of 2023, the plan does not involve any new structures or significant additions, but rather a residential retrofit of the existing structures, which will be designed by RENEWarchitect for Starline Developments. More info can be found on RENEW's page here: