Fine it’s not urban impact. I’ve got no idea what’s driving the actual housing price. But, I do know, if you price the exact same house say in Plano outside of Dallas vs a similar distance in NJ outside of NY City or Philadelphia, or in MA outside of Boston, the cost will be wildly different, with the TX one being considerably different. Put another way, for the same price you could get a hovel in NJ, a cottage in MA, and a McMansion in TX (on average before someone finds an example of their brother’s wife’s cousin that got a super deal on a piece of real estate. 
)
I’m not looking for a cause and effect, it’s only correlation. That in general, the coastal states seem to be more expensive for housing and they also run more blue. Neither causing the other, simply that they happen to correlate.
So, I suppose it’s possible that it’s only a correlation that the plan seems to impact Blue states more than Red states and not causation. We’ll never know…
Locally, I’ve seen that same $40K by school district in the same town. It’s uncommon, but does happen.
More often, it’s between towns. Last time we moved, there was a $100K difference for essentially the same house 5 miles apart. And, if we were able to go another 5 miles farther way, it would have dropped another $100K. At some point, the extra commute time is to much, we ended up in the middle area. But, couldn’t make/justify the spluge for the shorter commute in the closer town.
