[llamaorama]

Well, in Richardson they are tearing down some of the smaller 3-4 story office buildings for denser residential development, which is in the red line corridor. Also the tornado a few years ago trashed a few of the buildings along Central a few miles south and they tore them down instead of rebuilding.

There's nicer stuff replacing the ratchet 70s commercial buildings around Carrolton too. I'm sure the Stemmons corridor will get that eventually as it's close to the Med District and the Southwest Airlines corporate HQ. Actually they've cleaned up some of the high rise offices there so they might not be as doomed as you think.

For I-10 in Houston, who knows. But on Beltway 8 they tore down the Brown and Root campus for mixed use and there used to be some multistory office buildings on that land just north of the toll plaza that was vacant forever and is turning into apartments.