If we in basic agree that the Berkman is price depressed by about 40% to be safe in this estimate... and that central districts are "supposed" to be valued higher than the outskirts of DT, as supported by your map.
There are 209 condo units with 20 townhomes. The condos sell for $300k-$450k for the 1 & 2 bedroom units which are the majority of the building. For simplicity, I won't factor in the PH units.
So 209 units, with an easy $150k bump to the valuation per unit. Lets say the townhomes only modestly increase maybe $200k in value.
That's $33-34M in total value in today's dollars. Annually, thats $600k in property taxes today. So take that over 20 years. (For simplicity, I won't factor in appreciation or inflation, although the inflation has outpaced appreciation at this site). We come to a whopping $12M in lost tax revenue at one site for 20 years. That's being conservative about the numbers too. The Berkman has actually lost value in the time since it has opened, even though the market has almost doubled in other markets since.
Now take that across several parcels, and multiply it over 20 years. That annual tax number could finance a facility easily..
A new jail won't cost $700M in flat out cash. There are obvious ways for the city to capitalize on selling 10 acres of prime DT real estate, with the city also happening to be the largest beneficiary of all the adjacent land raising in value since they own all of it.
So, obtain a capital stack from the sale, and model out the increased tax revenue that WILL be produced from the move. It's not a hypothetical, like a lot of other plunged money DT.
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I'd flip the script right back and say.. Are you comfortable with being ripped off by the trio package? Is that the right thing to do for the people of JAX? What's the auxiliary benefit of the Trio package? Oh, it is literally negative. You can't even place a number on the negative aspects that the Jail brings. Again, check the crime map, I'm not talking about my feelings, just cold hard reporting figures. What monetary value would you place on the negative social climate that the jail has brought?
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And Baltimore is an extremely accurate comparison. DT JAX has had population decline for probably a comparable amount of time. Want to know whats on the other side of the Baltimore complex? Johns Hopkins.. a top 10 hospital in the country and a top 20 university in the country. We have a one of the only billion dollar businesses in JAX as ours. I'd argue that's way more comparable than the Ft. Lauderdale example with nothing of substance on the other side of it other than other county/city uses. Ft. Lauderdale also being a wealthy market, unlike DT Jax & Baltimore.