Buyers aren't willing to pay for it. Its not really up to the developers anyways.
[Edit] I am serious.
Homebuyers dont want to pay US construction prices for a 500sqft walkable Parisin style apartment. Nor do they want a xx billion dollar metro cost tacked onto their property tax.
[Edit] I am serious. Homebuyers dont want to pay US construction prices for a 500sqft walkable Parisin style apartment. Nor do they want a xx billion dollar metro cost tacked onto their property tax.