A recent development on parking minimums is about Toronto removing these for new residential developments:
Davis, E.N. (December 16, 2021) “Toronto Removes Parking Minimums for New Residential Developments,” Storeys, https://storeys.com/toronto-removes-parking-minimums-residential-developments/ [Last accessed: 12/23/2021]
Indeed, the building code and local government provisions for minimum numbers of parking spaces for various buildings translate into more expensive units for prospective residents or lessees. Perhaps someone should be collecting and analyzing the data on buildings such as high-rise residential and commercial developments? This is to have the numbers for an objective and factual discussion about parking minimums for these types of development. Here is an excerpt from the National Building Code showing examples of minimum parking requirements for residential buildings:
How many parking spaces are actually bought or leased/rented among the hundreds usually provided in buildings, to comply with building code and local government requirements? What is the ratio of parking slots per unit? Where are the trip-ends for these developments (especially for residential buildings)? The answers to these questions may help us understand the situation and formulate revisions to building code as well as local government requirements for the minimum number of parking spaces.