Speculation began to govern urban land use. Landlords and construction companies worked together to develop districts in their own financial interests, and many older neighborhoods were broken up.
許多地區在建商與地主合作下，也忙著改建與翻修，目的不是為了社區發展，而是為了地主的荷包。舊有社區也相對瓦解，加上大量的城鄉移民，人際關係也更疏離。