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Re:If you sell a house these days, the buyer might be a pens... by khrbrt on Wednesday June 09, 2021 @07:11PM (#27454567)
Density brings in more tax revenue to pay for expanding the sewers and can support more mass transit to reduce traffic -- no street widening needed.

In many cities, it's the poorer denser neighborhoods that subsidize the more affluent less dense neighborhoods.

Scroll down to red and green map here: https://www.strongtowns.org/journal/2015/5/10/lafayette

Re:If you sell a house these days, the buyer might be a pens... by RHSeeger on Wednesday June 09, 2021 @09:24PM (#27455666)
You can really add things like sewers after the fact. You either need to add them before or during the addition of more (higher density) housing. Generally, this means that the builder of the new housing is required to foot the bill for that added capacity, which can make it not worth the cost.

The same tends to be true of roads, but with less catastrophic results. In a town where going 2 miles can take 20 minutes, adding a lot more housing without adding road capacity is not a great plan.

Re:If you sell a house these days, the buyer might be a pens... by RHSeeger on Thursday June 10, 2021 @12:25AM (#27456634)
I meant to say that you can't add sewers after the fact, but now it's too late to edit. My apologies for any confusion.