> The developer has no incentive to under-build parking - nobody would rent in the building if there wasn't enough parking available.
The very existence of slums/slumlords suggests that selling substandard housing to desperate people suggests both that there are people willing to accept substandard housing and that it is profitable. If it can work with rat and mold infestations, etc, it can work with an uncomfortably small amount of parking.
I have no idea what the right amount is, but I certainly don't believe your reasoning provides more information.
The very existence of slums/slumlords suggests that selling substandard housing to desperate people suggests both that there are people willing to accept substandard housing and that it is profitable. If it can work with rat and mold infestations, etc, it can work with an uncomfortably small amount of parking.
I have no idea what the right amount is, but I certainly don't believe your reasoning provides more information.