The trunk & major limbs are certainly "gnarly"! And it is indeed rare for our native redbud to get that large. A better photo of the foliage would be helpful for a positive ID - C. siliquastrum has "orbicular" leaves, without a distinct pointed apex. Zooming in, it looks like at least some of the leaves on this tree have pointed tips, which would indicate C. canadensis.

Here's another big redbud (listed as the current national champion) in VA: https://nationalchampiontree.org/championTree/6038/

arbordave, you're right about the European redbud's leaves -- here a search pic.

And there were no other pics, but I agree that it seems leaves on our shown tree have "points".

I've seen pics of very old redbuds where the trunk bark peels off in sheets revealing a reddish inner bark inside -- almost like a cork oak shedding its bark.

There's a 40 footer just across my lot in the woods, but it's stretched for light and quite slender for its height.

I find it very unlikely for a native redbud to live long enough to attain that size. They are not very long lived under the best of conditions and that size would speak to many decades, not to mention that natives do not get that large either.

I am leaning to the European species as well.

If it is canadensis, it's quite a specimen. They grow up here, but they're not commonly seen like they are just a zone or two south of us. They have a reputation as being relatively short-lived, and I wonder how old it might be. It was probably planted after the house was built, so it might not be as old as it looks.

Not that I want something that grotesque in front of my house (somewhere in my yard, OTOH...) but it would be impressive for the native to have lived that long. Their short lived nature is one reason I don't like them. From when my parents bought their house in the DC suburbs around 1970, a redbud in our front yard finished its whole 'lifecycle'. My parents had to have it cut down a few years before they sold the house in the mid 2000s. Lots of dead branches by then.

Another rather amazing aspect of that shown redbud is the huge number of brownish seed-pods. It must've bloomed like crazy to produce so many....

∧∧∧ Which is another characteristic flag for Cercis siliquastrum. They are known for prolific, heavy seed production.

UBG, I've seen native redbuds get their limbs butchered when they get old and ragged, but then they surprise and resprout all over and get a second life.