I'm far from an expert on the economics of condo development, but a return to solid exterior walls/cladding materials (brick, stucco, etc.) and non-grey/bland colour choices (e.g., warm natural reddish tones, bright aqua/white, to name only a few examples) would be a great place to start. They lend at least a sense of solidity/permanence/dignity to buildings meant to be background/filler and aimed for "the masses".
Scores of cities around the world seem able to avoid the Torontonian scourge of cheap-looking back-painted charcoal grey window wall/spandrel/mullions without breaking the bank, apparently. Perhaps it's our still-ever-present cultural inheritance of industrial blue-collarism + Anglo-Scottish Protestantism/Presbyterianism + subordinate colonialism to blame, resulting in a deep-seated aversion to anything that transcends aesthetic/creative mediocrity and stingy/penny-pinching parsimony (
@isaidso)? Just speculating.