It takes nearly 300 ft^2 of space per parking space. If we insist on housing cars with nearly as much space as people (actually, cars take up five parking spaces when all driving is considered), then we are never going to return to having livable cities. Far too much of our city is given over to cars and their storage already, imo.

I believe Portland is now experimenting with requiring apartment builders to separate the cost of providing car housing from the cost of the apartments. Those who want to house their cars get to pay the extra $300/month rent and the other tenants don't have to subsidize them. Even conservatives should like such a market-based approach.