Hi Shiloh:
I'll be the irascible curmudgeon, and complain about the quality of the images. In none of those above can one make out whether this tree is opposite/alternate arrangement nor whether those are simple or compound leaves.
Feel much better now...
From the last picture alone, showing the habit, I would say this is a Styphnolobium japonicum (formerly Sophora japonica) - Japanese Pagoda Tree or Japanese Scholar Tree. The other species it has some reminiscence of is Robinia sp., possibly an older specimen of the clone called 'Twisty Baby'. It seems like in a relatively sunny location that there would be evidence of former flowers, seeds, etc. - but I can't make out any there.
This looks like a front yard tree, possibly in one of the Highlands neighborhoods. I work for Louisville Metro Parks, and I would be happy to go look at this tree in person and make the positive ID - if you could provide an address.
Barring that...take some clear pictures of stems, leaves, and buds. It is always easier to do so by collecting a sample and taking it to where there is good light, and you can focus on details (top and bottom sides) of leaves, buds, etc.
